Restriction on exhaust gas flow causes restriction on horsepower. RS*R in the development of their Downpipe line took this issue and set out to be able to provide turbo charged vehicles, the ability to increase significant horsepower and torque. With gains that are noticed simply by bolting on an RS*R down pipe, these downpipes are a great way to improve your vehicles performance. Tests have even shown power increases of up to 50HP when coupled with the RS*R GT-2 Exhaust system. RS*R, the quality and performance you can trust.