Chevrolet Monte Carlo Oxygen Sensor - Select Year

Position: Front
Direct Fit - - At Catalyst Inlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #25166816 -

Quality: OEM
Position: Front
OE Connector - - (In Exhaust Manifold Cross- Over- 1 Wire) - At Catalyst Inlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #19211437 - w/ OEM #25166816 -

Position: Front
OE Connector - - (In Exhaust Manifold Cross- Over- 1 Wire) - At Catalyst Inlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #19211437 - w/ OEM #25166816 -

Position: Front
OE Connector - - (In Exhaust Manifold Cross- Over- 1 Wire) - At Catalyst Inlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #19211437 - w/ OEM #25166816 -

Position: Front
OE Connector - - (In Exhaust Manifold Cross- Over- 1 Wire) - At Catalyst Inlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #19211437 - w/ OEM #25166816 -

Position: Front
Universal Fit - - 0 258 001 037 - 0 258 001 037 (single wire O2 sensor) - Exc. Engines 499944 & 499945 - 0.258.001.963 - 0.258.001.963 - California - 0.258.001.963 - Federal - 1 Wire - Non-Heated - 1 Wire - Non-Heated - 8-Valve - 1 Wire - Non-Heated - California - 1 Wire - Non-Heated - Exc. GT - 1 Wire - Non-Heated - GX Engine - 1 Wire - Non-Heated - KX & WE Engine - 1 Wire - Non-Heated - KZ Engine - 11 032 - 11 051 - At Catalyst Inlet - California - Engine - w/ Carburetor - Engine - w/ F/I - Exc. California - Federal - Front of Catalyst - Front of Catalyst - Exc. California - Inc. Turbo - L4 1.7 - L4 2.2 - L4 2.6 - L6 3.7 - L6 3.7 - California - Manifold to Header pipe. - Manifold to Header pipe. Syncro - Non - California - Non-California - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L4 2.6 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - OE Style - Before Catalyst - OE Style - Front of Catalyst - OE Style - Front of Converter - On Exhaust Manifold - Requires (1) 011 545 96 28 plug as available form local dealer. - Single Wire - Universal - w/o Connector - Universal - w/o Connector - Before Catalyst The submersible Bosch patented* connection system has undergone rigorous quality testing to USCAR standards. Tests have proven that this watertight system protects against contamination and withstands the effects of extreme temperatures and engine vibration. User friendly instructions, No special tools are required to install. Just strip wires & go! Specially designed heat resistant - Posi-Lock connectors can easily be taken apart and recon- nected in case of wiring error. - Universal - w/o connector - Exc. California - Universal - w/o connector - Turbo - Exc. California - Universal without connector Before Catalyst - Universal, w/o connector - V8 5.0 - V8 5.2 - V8 5.8 - V8 5.9 - V8 7.5 - w/ Carburetor - w/ Carburetor (Bosch Universal) single wire W/O Connector. - w/ Carburetor 1990 on Cal. B2200 pickups are fuel injected. -

Position: Front
Universal Fit - - 0 258 001 037 - 0 258 001 037 (single wire O2 sensor) - Exc. Engines 499944 & 499945 - 0.258.001.963 - 0.258.001.963 - California - 0.258.001.963 - Federal - 1 Wire - Non-Heated - 1 Wire - Non-Heated - 8-Valve - 1 Wire - Non-Heated - California - 1 Wire - Non-Heated - Exc. GT - 1 Wire - Non-Heated - GX Engine - 1 Wire - Non-Heated - KX & WE Engine - 1 Wire - Non-Heated - KZ Engine - 11 032 - 11 051 - At Catalyst Inlet - California - Engine - w/ Carburetor - Engine - w/ F/I - Exc. California - Federal - Front of Catalyst - Front of Catalyst - Exc. California - Inc. Turbo - L4 1.7 - L4 2.2 - L4 2.6 - L6 3.7 - L6 3.7 - California - Manifold to Header pipe. - Manifold to Header pipe. Syncro - Non - California - Non-California - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L4 2.6 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - OE Style - Before Catalyst - OE Style - Front of Catalyst - OE Style - Front of Converter - On Exhaust Manifold - Requires (1) 011 545 96 28 plug as available form local dealer. - Single Wire - Universal - w/o Connector - Universal - w/o Connector - Before Catalyst The submersible Bosch patented* connection system has undergone rigorous quality testing to USCAR standards. Tests have proven that this watertight system protects against contamination and withstands the effects of extreme temperatures and engine vibration. User friendly instructions, No special tools are required to install. Just strip wires & go! Specially designed heat resistant - Posi-Lock connectors can easily be taken apart and recon- nected in case of wiring error. - Universal - w/o connector - Exc. California - Universal - w/o connector - Turbo - Exc. California - Universal without connector Before Catalyst - Universal, w/o connector - V8 5.0 - V8 5.2 - V8 5.8 - V8 5.9 - V8 7.5 - w/ Carburetor - w/ Carburetor (Bosch Universal) single wire W/O Connector. - w/ Carburetor 1990 on Cal. B2200 pickups are fuel injected. -

Position: Front
Universal Fit - - 0 258 001 037 - 0 258 001 037 (single wire O2 sensor) - Exc. Engines 499944 & 499945 - 0.258.001.963 - 0.258.001.963 - California - 0.258.001.963 - Federal - 1 Wire - Non-Heated - 1 Wire - Non-Heated - 8-Valve - 1 Wire - Non-Heated - California - 1 Wire - Non-Heated - Exc. GT - 1 Wire - Non-Heated - GX Engine - 1 Wire - Non-Heated - KX & WE Engine - 1 Wire - Non-Heated - KZ Engine - 11 032 - 11 051 - At Catalyst Inlet - California - Engine - w/ Carburetor - Engine - w/ F/I - Exc. California - Federal - Front of Catalyst - Front of Catalyst - Exc. California - Inc. Turbo - L4 1.7 - L4 2.2 - L4 2.6 - L6 3.7 - L6 3.7 - California - Manifold to Header pipe. - Manifold to Header pipe. Syncro - Non - California - Non-California - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L4 2.6 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - OE Style - Before Catalyst - OE Style - Front of Catalyst - OE Style - Front of Converter - On Exhaust Manifold - Requires (1) 011 545 96 28 plug as available form local dealer. - Single Wire - Universal - w/o Connector - Universal - w/o Connector - Before Catalyst The submersible Bosch patented* connection system has undergone rigorous quality testing to USCAR standards. Tests have proven that this watertight system protects against contamination and withstands the effects of extreme temperatures and engine vibration. User friendly instructions, No special tools are required to install. Just strip wires & go! Specially designed heat resistant - Posi-Lock connectors can easily be taken apart and recon- nected in case of wiring error. - Universal - w/o connector - Exc. California - Universal - w/o connector - Turbo - Exc. California - Universal without connector Before Catalyst - Universal, w/o connector - V8 5.0 - V8 5.2 - V8 5.8 - V8 5.9 - V8 7.5 - w/ Carburetor - w/ Carburetor (Bosch Universal) single wire W/O Connector. - w/ Carburetor 1990 on Cal. B2200 pickups are fuel injected. -

Position: Front
Direct Fit - - Before Catalyst - L4 2.5 - V6 2.8 - V6 3.8 - V6 4.1 - V6 4.1 w/ Carburetor - V8 3.8 - V8 4.3 - V8 4.4 - V8 4.9 - V8 5.0 - V8 5.7 - V8 6.0 - w/ Carburetor - w/ EFI -

Position: Front
Direct Fit - - Before Catalyst - L4 2.5 - V6 2.8 - V6 3.8 - V6 4.1 - V6 4.1 w/ Carburetor - V8 3.8 - V8 4.3 - V8 4.4 - V8 4.9 - V8 5.0 - V8 5.7 - V8 6.0 - w/ Carburetor - w/ EFI -

Position: Front
Direct Fit - - Before Catalyst - L4 2.5 - V6 2.8 - V6 3.8 - V6 4.1 - V6 4.1 w/ Carburetor - V8 3.8 - V8 4.3 - V8 4.4 - V8 4.9 - V8 5.0 - V8 5.7 - V8 6.0 - w/ Carburetor - w/ EFI -

Quality: OEM
Position: Front
OE Type - - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #25166816 -

Position: Front
OE Type - - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #25166816 -

Position: Front
OE Type - - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #25166816 -

Position: Front
OE Type - - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - California - At Exhaust Manifold Outlet - Exc. Option Code ZN4 - At Exhaust Manifold Outlet - Models made in USA - At Exhaust Manifold Outlet - Models made in USA - w/ Carburetor - Before Catalyst - California - Exc. California - Exc. GNX Series - Exc. Transmission Code 4L60E - Exhaust Manifold - Front - 2 Required Rear - 1 Required - GNX Series - L4 2.5 - w/ Fuel Injected - L6 4.1 - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - Optional - Supercharged - V6 2.8 - w/ FI - V6 4.1 - w/ EFI - V8 5.7 - w/ 1-Wire Sensor - w/ 4-Bbl. Carburetor - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ Federal Emission System
Before Catalyst (At Exhaust Manifold) - w/ OEM #25166816 -

Quality: OEM
Position: Front
- Before Catalyst - L4 2.5 - V6 2.8 - V6 3.8 - V6 4.1 - V6 4.1 w/ Carburetor - V8 3.8 - V8 4.3 - V8 4.4 - V8 4.9 - V8 5.0 - V8 5.7 - V8 6.0 - w/ Carburetor - w/ EFI -

Quality: OEM
Position: Front
- Before Catalyst - L4 2.5 - V6 2.8 - V6 3.8 - V6 4.1 - V6 4.1 w/ Carburetor - V8 3.8 - V8 4.3 - V8 4.4 - V8 4.9 - V8 5.0 - V8 5.7 - V8 6.0 - w/ Carburetor - w/ EFI -

Quality: OEM
Position: Front
- Before Catalyst - L4 2.5 - V6 2.8 - V6 3.8 - V6 4.1 - V6 4.1 w/ Carburetor - V8 3.8 - V8 4.3 - V8 4.4 - V8 4.9 - V8 5.0 - V8 5.7 - V8 6.0 - w/ Carburetor - w/ EFI -

Position: Front
Universal - - Non - California - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L4 2.6 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - OE Style - Before Catalyst - OE Style - Front of Catalyst - OE Style - Front of Converter - Universal - w/o Connector - Universal - w/o connector - Exc. California - Universal - w/o connector - Turbo - Exc. California - Universal without connector Before Catalyst - Universal, w/o connector - w/ Carburetor -

Position: Front
Universal - - Non - California - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L4 2.6 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - OE Style - Before Catalyst - OE Style - Front of Catalyst - OE Style - Front of Converter - Universal - w/o Connector - Universal - w/o connector - Exc. California - Universal - w/o connector - Turbo - Exc. California - Universal without connector Before Catalyst - Universal, w/o connector - w/ Carburetor -

Position: Front
Universal - - Non - California - OE Style - 1-Wire - OE Style - 1-Wire - Brougham - OE Style - 1-Wire - Exc. California - OE Style - 1-Wire - L4 2.5 - OE Style - 1-Wire - L4 2.6 - OE Style - 1-Wire - L6 4.1 - OE Style - 1-Wire - Located at Manifold - OE Style - 1-Wire - Supercharged - OE Style - 1-Wire - V6 2.8 - OE Style - 1-Wire - V6 3.0 - OE Style - 1-Wire - V6 3.8 - OE Style - 1-Wire - V6 4.1 - OE Style - 1-Wire - V8 4.3 - OE Style - 1-Wire - V8 4.4 - OE Style - 1-Wire - V8 4.9 - OE Style - 1-Wire - V8 5.0 - OE Style - Before Catalyst - OE Style - Front of Catalyst - OE Style - Front of Converter - Universal - w/o Connector - Universal - w/o connector - Exc. California - Universal - w/o connector - Turbo - Exc. California - Universal without connector Before Catalyst - Universal, w/o connector - w/ Carburetor -

Direct Fit - - (Before Catalyst) - After Catalyst - At Catalyst Inlet - At Catalyst Inlet or Outlet - At Catalyst Outlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet or Catalyst Outlet - At Left or Right Y-pipe Inlet & At Catalyst Outlet - At Y-pipe Inlet & Catalyst inlet or Outlet - Before Catalyst - Before Catalyst
(At Exhaust Manifold- Inline Connector) - Catalyst Inlet or Catalyst Outlet - Exc. Electronic Control Transmission - Front - 2 Required Rear - 1 Required - Front/Rear - Front/Rear Front - Front/Rear Front (2-Required) - Front/Rear Front - 2 Required - Front/Rear Front - 2 Required Rear - 1 Requried - Front/Rear Front 2 Required - Front/Rear Rear 2 Required - Front/Rear Rear After catalyst - GVW under 8500 Lbs. - Position 2 (Includes Inline Connector) (Pre Converter) - w/ 4L60E Transmission
(Before Catalyst) - w/ Electonic Transmission - w/ Electronic Automatic Transmission - w/ Electronic Transmission - w/ or w/o Canada Built - w/ or w/o Canada Built w/ Regular or Flex Fuel Engine -

Direct Fit - - (Before Catalyst) - After Catalyst - At Catalyst Inlet - At Catalyst Inlet or Outlet - At Catalyst Outlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet or Catalyst Outlet - At Left or Right Y-pipe Inlet & At Catalyst Outlet - At Y-pipe Inlet & Catalyst inlet or Outlet - Before Catalyst - Before Catalyst
(At Exhaust Manifold- Inline Connector) - Catalyst Inlet or Catalyst Outlet - Exc. Electronic Control Transmission - Front - 2 Required Rear - 1 Required - Front/Rear - Front/Rear Front - Front/Rear Front (2-Required) - Front/Rear Front - 2 Required - Front/Rear Front - 2 Required Rear - 1 Requried - Front/Rear Front 2 Required - Front/Rear Rear 2 Required - Front/Rear Rear After catalyst - GVW under 8500 Lbs. - Position 2 (Includes Inline Connector) (Pre Converter) - w/ 4L60E Transmission
(Before Catalyst) - w/ Electonic Transmission - w/ Electronic Automatic Transmission - w/ Electronic Transmission - w/ or w/o Canada Built - w/ or w/o Canada Built w/ Regular or Flex Fuel Engine -

Position: Front
Universal Fit - - 2WD - 2WD - California - 2WD - Exc. California - 4 Wire square female Plug - 4 Wire square female Plug 4 Wire square female Plug - 4WD - 4WD - California - After Catalyst - After Catalyst - California - After Catalyst - Firewall side - In Exhaust Pipe - After Catalyst
Right - At Front Exhaust Manifold Outlet - Radiator Side - At lower cat. outlet on non-Calif. model - At Rear Catalyst Outlet - At Rear Catalyst Outlet - Exc. California - Before Catalyst - Before Catalyst - California - Before Catalyst - Firewall Side - On Exhaust Pipe - Before Catalyst - Firewall Side - On Exhaust Pipe - Federal - Before Catalyst - Radiator Side - On Exhaust Pipe - Before Catalyst - Radiator Side - On Exhaust Pipe - Federal - California - California - 2WD - California - Wagon only - California Emissions - California Emissions - w/29.8" Pigtail - Catalyst Outlet - Converter - Exc. California Wagon - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - Front - Radiator Side - Front - Radiator Side - Front - 2 Required Rear - 2 Required - Front Catalyst Outlet - California - 2WD - GVW under 8500 Lbs. - In Header Pipe - In Header Pipe - 4WD - In Header Pipe - California - In Header Pipe - California - 4WD - In Header Pipe - Exc. California - Located at Manifold - Non-California - OE Style - OE Style - 4-Wire - OE Style - 4R70 - OE Style - California & Massachusetts - OE Style - California & Massachusetts - Under 8500 lbs. GVW - OE Style - California & Massashusetts - OE Style - California FLEX - OE Style - Exc. Califonia - OE Style - Exc. California - FLEX E40D - OE Style - Flex - OE Style - Under 8500 Lbs. GVW - California & Massachusetts - OE Style 4-Wire - OE Style 4-Wire - Located at Exhaust Pipe - On Exhaust Manifold - Radiator Side - On Exhaust Pipe - Rear - Firewall Side - Rear - Firewall Side - w/ Canada Built - w/ Electronic Automatic Transmission - w/ Electronic Transmission -

Position: Front
Direct Fit - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Position: Front
Direct Fit - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Position: Front
Direct Fit - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Position: Rear
Direct Fit - - (After Catalyst) - After Catalyst - After Catalyst
Except Flex Fuel Engine (Engine Vin - 8th Digit - will be '4') - After Catalyst
w/ Flex Fuel Engine (Engine Vin - 8th Digit - will be '5') - At Catalyst Outlet - Before and After Catalyst - Before and After Cataylst - Late - Located at Exhaust Pipe - Located before Catalyst - Optional - Standard -

Position: Rear
Direct Fit - - (After Catalyst) - After Catalyst - After Catalyst
Except Flex Fuel Engine (Engine Vin - 8th Digit - will be '4') - After Catalyst
w/ Flex Fuel Engine (Engine Vin - 8th Digit - will be '5') - At Catalyst Outlet - Before and After Catalyst - Before and After Cataylst - Late - Located at Exhaust Pipe - Located before Catalyst - Optional - Standard -

Position: Front
- Before Catalyst - California - Canada Built - Front - 2 Required Rear - 1 Required - Front - 2 Required Rear - 2 Required - Late Production - Pre Converter (Position 2) - Stamped 12559850 - w/ Canada Built - w/ Canada Built w/ Regular or Flex Fuel Engine - w/ Mexicio or Canadian Built Vehicle
(After Catalyst) - w/ Mexico or Canadian Built Vehicle
(VIN "T")
(After Catalyst) - w/ Pre Converter (Position 2) -

Position: Front
- Before Catalyst - California - Canada Built - Front - 2 Required Rear - 1 Required - Front - 2 Required Rear - 2 Required - Late Production - Pre Converter (Position 2) - Stamped 12559850 - w/ Canada Built - w/ Canada Built w/ Regular or Flex Fuel Engine - w/ Mexicio or Canadian Built Vehicle
(After Catalyst) - w/ Mexico or Canadian Built Vehicle
(VIN "T")
(After Catalyst) - w/ Pre Converter (Position 2) -

Position: Rear
Direct Fit - - After Catalyst - After Catalyst
Right - California - Position 2 & 3 : Federal -Front/Rear - Front & Rear - Front - 2 Required Rear - 2 Required - Position 2 & Position 3 - w/ Calif, Position 2 & 3 w/ Federal, Front/Rear -

Quality: OEM
OE Type - - (Before Catalyst) - After Catalyst - At Catalyst Inlet - At Catalyst Inlet or Outlet - At Catalyst Outlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet or Catalyst Outlet - At Left or Right Y-pipe Inlet & At Catalyst Outlet - At Y-pipe Inlet & Catalyst inlet or Outlet - Before Catalyst - Before Catalyst
(At Exhaust Manifold- Inline Connector) - California - Catalyst Inlet or Catalyst Outlet - Exc. Electronic Control Transmission - Front - 2 Required Rear - 1 Required - Front - 2 Required Rear - 2 Required - Front/Rear - Front/Rear Front - Front/Rear Front (2-Required) - Front/Rear Front - 2 Required - Front/Rear Front - 2 Required Rear - 1 Requried - Front/Rear Front 2 Required - Front/Rear Rear 2 Required - Front/Rear Rear After catalyst - GVW under 8500 Lbs. - Position 2 (Includes Inline Connector) (Pre Converter) - w/ 4L60E Transmission
(Before Catalyst) - w/ Electonic Transmission - w/ Electronic Automatic Transmission - w/ Electronic Transmission - w/ or w/o Canada Built - w/ or w/o Canada Built w/ Regular or Flex Fuel Engine -

Quality: OEM
OE Type - - (Before Catalyst) - After Catalyst - At Catalyst Inlet - At Catalyst Inlet or Outlet - At Catalyst Outlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet or Catalyst Outlet - At Left or Right Y-pipe Inlet & At Catalyst Outlet - At Y-pipe Inlet & Catalyst inlet or Outlet - Before Catalyst - Before Catalyst
(At Exhaust Manifold- Inline Connector) - California - Catalyst Inlet or Catalyst Outlet - Exc. Electronic Control Transmission - Front - 2 Required Rear - 1 Required - Front - 2 Required Rear - 2 Required - Front/Rear - Front/Rear Front - Front/Rear Front (2-Required) - Front/Rear Front - 2 Required - Front/Rear Front - 2 Required Rear - 1 Requried - Front/Rear Front 2 Required - Front/Rear Rear 2 Required - Front/Rear Rear After catalyst - GVW under 8500 Lbs. - Position 2 (Includes Inline Connector) (Pre Converter) - w/ 4L60E Transmission
(Before Catalyst) - w/ Electonic Transmission - w/ Electronic Automatic Transmission - w/ Electronic Transmission - w/ or w/o Canada Built - w/ or w/o Canada Built w/ Regular or Flex Fuel Engine -

Quality: OEM
Position: Front
OE Type - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Before Catalyst - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Quality: OEM
Position: Front
OE Type - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Before Catalyst - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Quality: OEM
Position: Front
OE Type - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Before Catalyst - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Quality: OEM
Position: Front
OE connector - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Quality: OEM
Position: Front
OE connector - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Quality: OEM
Position: Front
OE connector - - (After Catalyst) - (Before Catalyst) - (Before Catalytst) - After Catalyst - After Catalyst
(Square Connector) - After Catalyst
Right - At Exhaust Manifold - At Exhaust Manifold
w/ Heated Sensor - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except California Emission System
(Before Catalyst) - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - GVW under 8500 lbs. - Located at Manifold - Position 1 (In Exhaust Manifold/ Crossover) - w/ 4-Wire Sensors
(Before Catalyst) - w/ Canada Built -

Quality: OEM
Position: Front
- After Catalyst - Before Catalyst - California - Canada Built - Front - 2 Required Rear - 1 Required - Front - 2 Required Rear - 2 Required - Late Production - Pre Converter (Position 2) - Stamped 12559850 - w/ Canada Built - w/ Canada Built w/ Regular or Flex Fuel Engine - w/ Mexicio or Canadian Built Vehicle
(After Catalyst) - w/ Mexico or Canadian Built Vehicle
(VIN "T")
(After Catalyst) - w/ Pre Converter (Position 2) -

Quality: OEM
Position: Front
- After Catalyst - Before Catalyst - California - Canada Built - Front - 2 Required Rear - 1 Required - Front - 2 Required Rear - 2 Required - Late Production - Pre Converter (Position 2) - Stamped 12559850 - w/ Canada Built - w/ Canada Built w/ Regular or Flex Fuel Engine - w/ Mexicio or Canadian Built Vehicle
(After Catalyst) - w/ Mexico or Canadian Built Vehicle
(VIN "T")
(After Catalyst) - w/ Pre Converter (Position 2) -

Quality: OEM
OE Connector - - (Before Catalyst) - After Catalyst - At Catalyst Inlet or Outlet - At Catalyst Outlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet or Catalyst Outlet - At Left or Right Y-pipe Inlet & At Catalyst Outlet - At Y-pipe Inlet & Catalyst inlet or Outlet - Before Catalyst - Before Catalyst
(At Exhaust Manifold- Inline Connector) - Catalyst Inlet or Catalyst Outlet - Exc. Electronic Control Transmission - Front - 2 Required Rear - 1 Required - Front/Rear - Front/Rear Front - Front/Rear Front (2-Required) - Front/Rear Front - 2 Required - Front/Rear Front - 2 Required Rear - 1 Requried - Front/Rear Front 2 Required - Front/Rear Rear 2 Required - Front/Rear Rear After catalyst - GVW under 8500 Lbs. - Position 2 (Includes Inline Connector) (Pre Converter) - w/ 4L60E Transmission
(Before Catalyst) - w/ Electonic Transmission - w/ Electronic Automatic Transmission - w/ Electronic Transmission - w/ or w/o Canada Built - w/ or w/o Canada Built w/ Regular or Flex Fuel Engine -

Quality: OEM
OE Connector - - (Before Catalyst) - After Catalyst - At Catalyst Inlet or Outlet - At Catalyst Outlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet or Catalyst Outlet - At Left or Right Y-pipe Inlet & At Catalyst Outlet - At Y-pipe Inlet & Catalyst inlet or Outlet - Before Catalyst - Before Catalyst
(At Exhaust Manifold- Inline Connector) - Catalyst Inlet or Catalyst Outlet - Exc. Electronic Control Transmission - Front - 2 Required Rear - 1 Required - Front/Rear - Front/Rear Front - Front/Rear Front (2-Required) - Front/Rear Front - 2 Required - Front/Rear Front - 2 Required Rear - 1 Requried - Front/Rear Front 2 Required - Front/Rear Rear 2 Required - Front/Rear Rear After catalyst - GVW under 8500 Lbs. - Position 2 (Includes Inline Connector) (Pre Converter) - w/ 4L60E Transmission
(Before Catalyst) - w/ Electonic Transmission - w/ Electronic Automatic Transmission - w/ Electronic Transmission - w/ or w/o Canada Built - w/ or w/o Canada Built w/ Regular or Flex Fuel Engine -

Position: Front
Direct Fit - - After Catalyst - Before Catalyst - Engine - L61 - Front - 2 Required Rear - 1 Required - Position 1 -

Position: Front
Direct Fit - - After Catalyst - Before Catalyst - Engine - L61 - Front - 2 Required Rear - 1 Required - Position 1 -

Position: Rear
OE connector - - (After Catalyst) - After Catalyst - After Catalyst
Except Flex Fuel Engine (Engine Vin - 8th Digit - will be '4') - After Catalyst
w/ Flex Fuel Engine (Engine Vin - 8th Digit - will be '5') - At Catalyst Outlet - Before and After Catalyst - Before and After Cataylst - Late - Located at Exhaust Pipe - Located at Manifold - Located before Catalyst - OEM# 25312197 - Optional - Standard -

Quality: OEM
Position: Rear
OE connector - - (After Catalyst) - After Catalyst - After Catalyst
Except Flex Fuel Engine (Engine Vin - 8th Digit - will be '4') - After Catalyst
w/ Flex Fuel Engine (Engine Vin - 8th Digit - will be '5') - At Catalyst Outlet - Before and After Catalyst - Before and After Cataylst - Late - Located at Exhaust Pipe - Located at Manifold - Located before Catalyst - OEM# 25312197 - Optional - Standard -

Quality: OEM
Position: Rear
OE connector - - (After Catalyst) - After Catalyst - After Catalyst
Except Flex Fuel Engine (Engine Vin - 8th Digit - will be '4') - After Catalyst
w/ Flex Fuel Engine (Engine Vin - 8th Digit - will be '5') - At Catalyst Outlet - Before and After Catalyst - Before and After Cataylst - Late - Located at Exhaust Pipe - Located at Manifold - Located before Catalyst - OEM# 25312197 - Optional - Standard -

Quality: OEM
Position: Front
Universal - - After Catalyst - After Catalyst
Right - At Catalyst Inlet or Outlet - At Catalyst Outlet - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet or Catalyst Outlet - At Left or Right Y-pipe Inlet & At Catalyst Outlet - California - Catalyst Inlet or Catalyst Outlet - Exc. Canada Built - Exc. Canada Built w/ Regular or Flex Fuel Engine - Except Mexico of Canadian Built Vehicle
(After Catalyst) - Except Mexico or Canadian Built Vehicle
(After Catalyst) - Front - 2 Required Rear - 2 Required - GVW under 8500 Lbs. - Located at Manifold - OE Style - 4-Wire - OE Style 4-Wire - OE Style 4-Wire - Located at Exhaust Pipe - w/ Canada Built - w/ Electronic Automatic Transmission - w/ Electronic Transmission -

Quality: OEM
Front/Rear - Front/Rear Front - Front/Rear Front (2-Required) - Front/Rear Front - 2 Required - Front/Rear Front - 2 Required Rear - 1 Requried - Front/Rear Front 2 Required - Front/Rear Rear 2 Required - Front/Rear Rear After catalyst -

Quality: OEM
Front/Rear - Front/Rear Front - Front/Rear Front (2-Required) - Front/Rear Front - 2 Required - Front/Rear Front - 2 Required Rear - 1 Requried - Front/Rear Front 2 Required - Front/Rear Rear 2 Required - Front/Rear Rear After catalyst -

Quality: OEM
Position: Front
OE Type - - At Exhaust Manifold Outlet - At Exhaust Manifold Outlet - Models made in USA - w/ F/I Engine -

Quality: OEM
Position: Front
- Before Catalyst - Engine - L61 - OE Type - Before Catalyst - Position 1 -

Quality: OEM
Position: Front
- Before Catalyst - Engine - L61 - OE Type - Before Catalyst - Position 1 -