MAD BMW S58 Downpipes M2 M3 M4 G87 G80 G82 G83 G8x bmw h pipe Continental Flex Fuel sensor 3-wire

Continental Flex Fuel sensor 3-wire harness

it makes a clean "click" noise every time you shift

2015 Bmw F82/F83 M4

2016 – 2019 F33 440i & 440iX Convertible (1st & 2nd Gen B58 Engine)

MAD BMW S58 Downpipes M2 M3 M4 G87 G80 G82 G83 G8x bmw h pipe Continental Flex Fuel sensor 3-wireUpgrade from the stock S58 downpipes to the MAD S58 catless downpipes for maximum airflow, power, and sound! Upgrade to the MAD BMW S58 downpipes to eliminate the backpressure caused by your stock catalytic converters. By upgrading to our downpipes, your turbos can now spool faster and achieve maximum power. As a bonus, your car will sound a lot nicer as well. Expect up to a 30HP increase on a tuned BMW S58 with stock turbos, even more on cars with