Mercedes-Benz 420S Catalytic Converter - Select Year

Direct Fit Catalytic Converter - This part doe NOT include the Pre-Cat as noted on Bosal catalog pg. 155. It also has only ONE straight pipe from the Headers until the rear of the Cat where two pipes extend outward from the catalyst
New CARB regulations that went into effect on January 1, 2009 now require
all exhaust catalyst devices that are sold in California regardless of
model year must meet the tougher OBD II emission standards that were
introduced in the 1996 model year. Until further notice, this catalytic
converter should not be used on vehicles registered in California. -

Direct Fit Catalytic Converter - 49-state legal, OBDII compatible, not legal for sale or use in California. -