Audi S4 is the A4 for the owner who demands performance and handling. The S4 came with a 6cly turbocharged engine. The S4 does need a free flow exhaust, and a cold air intake to really get the perfomance and trottle reponse this car is wanting. Upgrade to a Eibach Pro Kit to give the car the little extra handling and asthetics. If you are looking for Audi S4 or RS4 Parts, we have the parts you need Catalytic Converters, Brake Pad Sensors, Air Flow Meters, Water Pumps, Spark Plug Wires, and Power Steering Pumps at discount prices.
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