Active Autowerke BMW B58 G2X G4X M240i M340i M440i Downpipe exhaust upgrade (2024 and older)

Active Autowerke BMW B58 Downpipe IN STOCK NOW - CONTACT ONE OF OUR RACE DEALERS TO PURCHASE NOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars. **This product is a part of the Active Autowerke Motorsport Collection. It is for RACE and OFF-ROAD USE ONLY! ***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921*** BMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and carried over to the G-series models. The Active Autowerke B58 downpipe for the M240i, M340i and M440i helps unleash some of the potential that is restricted by the OEM downpipe. Turbochargers are powered by spent exhaust gases created during the combustion process. Th