MAD BMW F & G Chassis 5" B58 Catted Downpipe M240 340 M340 440 M440 540 W/ No CEL Guarantee & Bracket bmw f32 4 series 420 428 435 440 m performance style rear diffuser Models include: BMW G20 M340i

Models include: BMW G20 M340i and G21 M340i Touring

Faster wheel changes compared to factory wheel bolts

or engine bay aesthetics

and M340i (xDrive and diesel variations as well)

MAD BMW F & G Chassis 5" B58 Catted Downpipe M240 340 M340 440 M440 540 W/ No CEL Guarantee & Bracket bmw f32 4 series 420 428 435 440 m performance style rear diffuser Models include: BMW G20 M340iUpgrade your BMWs performance and sound with the MAD 5" Catted Downpipe, engineered specifically for B58 powered BMW F and G chassis models. This high performance downpipe delivers increased horsepower, improved throttle response, and a deeper, more aggressive exhaust noteall without triggering a check engine light. Crafted from race grade 304 stainless steel, the downpipe features a smooth, mandrel bent 5" design for maximum flow. A 300 cell high