CTS Turbo Race 4" Downpipe BMW N55 (Electric Wastegate)

The CTS Turbo Race 4" Downpipe is purpose-built for BMW N55 engines equipped with electric wastegate control. Designed to replace the restrictive factory downpipe, this 4-inch mandrel-bent system dramatically improves exhaust flow and reduces backpressure. Engineered specifically for F22 M135i and M235i models alongside F30 335i variants, it delivers sharper throttle response and enhanced turbo efficiency. Built from high-grade stainless steel with precision flanges, this race-spec downpipe is intended for dedicated performance applications where maximum flow is essential.