Specializing in forced-induction tuning by VRSF, we proudly offer performance downpipe exhaust systems for most modern BMW vehicle platforms. Swapping out the restrictive factory downpipe with a performance downpipe will allow you to unlock the next level of performance with your vehicle. Upgraded downpipe systems can include high-flow catalytic converters or can be straight pipe, no restriction. By doing so you can expect better throttle response, more horsepower and an intoxicating exhaust note, while remaining civilized during normal daily driving. An upgraded downpipe will significantly decrease the back-pressure at the turbo or supercharger, allowing for Stage 2 tuning setting and beyond.