Island Racewerks - B58 5" Catless Downpipe (Decor)

Upgrade your B58 engine with the Island Racewerks 5" Catless Downpipe. Eliminate backpressure from standard catalytic converters for faster turbo spooling and an increase of up to 30HP in tuned engines. The flex pipe section reduces engine stress and vibration. It fits all Gen 1 and Gen2 B58s, including the Toyota Supra. Features : Smooth bends allow better airflow with less drone Increase in horsepower without a tune, even more with a tune Great fitment Made from high-quality stainless steel   Fitment :  2015+ BMW M240i & Xdrive 2016-2019 BMW 340i & Xdrive 2016+ BMW 440i & Xdrive 2016+ BMW 540i & Xdrive 2016+ BMW 740i & Xdrive 2017-2020 X3 M40 2017-2020 X4 M40 2019+ Toyota Supra 3.0L