The sporty Cat-back exhaust system from Milltek Sport is dedicated to the BMW M3 F80, M4 F82/F83 Competition with a GPF filter. The entire system is made of stainless steel and finished with 4 tips with a diameter of 90 mm. The exhaust is available in a louder Race version and a quieter Road version. The system is compatible with the stock downpipe. All versions feature a rear silencer compatible with the throttle system controlled by the onboard computer.