Wagner BMW B58 Catless Downpipe (M140i, M240i, 340i & 440i & more) M3 (E92 & E93) EXHAUSTS deeper and more natural inline-six

deeper and more natural inline-six sound

See our video install guide at the bottom of the description

BMW specialists

Fully ECE-compliant

30d/40d (Diesel

Wagner BMW B58 Catless Downpipe (M140i, M240i, 340i & 440i & more) M3 (E92 & E93) EXHAUSTS deeper and more natural inline-sixWagner Tuning BMW B58 Catless Downpipe removes the factory catalytic convertor for increased performance and tuning potential. Decatting your B58 engine dramatically reduces back pressure in the OEM exhaust system improving throttle response, torque and noise. This is an essential upgrade for those looking to tune their B58 powered BMW as the factory downpipe will severely restrict performance gains. DISCLAIMER This item is not intended for use on the