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the RKP diffuser was designed with full length fins that reach all the way from the inside of the insert to their termination point at the rear of the bumper
Once installed to the BMW the new free flowing GPF-back half system improves the vehicles power and sharpens up throttle response as well as reduce the overall weight
With the ECU remap we generally see anything upto 415bhp on a stock vehicle once an adaptation time period has elapsed
This BMW 335i performance exhaust is made in 3"/76
Citroen (DS3) and BMW Mini (Cooper S
Eisenmann Resonated Centre Pipe - BMW G82 M4 Coupe F57 the RKP diffuser was designedProduct information "Resonated Center Pipe for BMW M 4 Series Coupe" Bolt On resonated center pipe. The Eisenmann Bolt On resonated center pipe upgrades the Eisenmann Slip On rear muffler to a full downpipe back Bolt On exhaust system. !! ATTENTION!! Gasoline Particulate Filter (GPF) delete. Re mapping of the ECU is necessary to avoid OBD error and DRIVETRAIN malfunction. Version RACE! ***For Racing Export only*** Not EG CEE EPA CARB approved! Not