4.5" Catless Downpipe For BMW B58 Gen 1

This product fits M240i 340i 440i 540i 740i 2016-2019

Unleash the full potential of your B58 engine with our Catless Downpipe — built for maximum power, sound, and turbo efficiency.

Designed for BMW models equipped with the B58 engine, this downpipe removes the factory catalytic restriction, allowing for significantly improved exhaust flow, faster turbo spool, and noticeable gains in horsepower and torque.