Akrapovic Downpipe w Cat (SS) - M340i (G20, G21) / M440i (G22, G23) / M440i Gran Coupe (G26) / Supra (A90) / Z4 M40i (G29) 2018-toyota-4runner-esi1840948 including braking plate surfaces

including braking plate surfaces

100% MIG welded stainless steel for strength and durability

far surpassing the demands of even the most stringent customers

Four-piston architecture provides superior modulation and reduced fade compared to single-piston designs

Akrapovic Downpipe w Cat (SS) - M340i (G20, G21) / M440i (G22, G23) / M440i Gran Coupe (G26) / Supra (A90) / Z4 M40i (G29) 2018-toyota-4runner-esi1840948 including braking plate surfacesThe Akrapovic Downpipe w Cat (SS) replaces the restrictive factory downpipe to improve turbo spool and exhaust flow. Built to motorsport standards, it is engineered to work with the matching Akrapovic exhaust for a noticeable lift in response. Features Free flowing replacement downpipe Improves turbo spool and exhaust flow Pairs with the matching Akrapovic system Built to motorsport standards Fitment Make: BMW Model: M340i (G20, G21) Year: 2026 Notes