Description For a strong boost in power, the Invidia Downpipe offers an alternative to other power-boosting enhancements. To see just how much power the Invidia Downpipe can produce, a quick look at its dyno chart shows it easily added several horsepower to the stock exhaust system. Each Invidia Downpipe features a large 4" Stainless Steel bellmouth to enhance power by freeing excess gas. The Invidia Downpipe sports a one-piece design, eliminating the need for the stock catalytic converter. In addition, each Invidia Downpipe can be bolted up to any Invidia Exhaust or a stock exhaust for an easy installation. Features 304 Stainless Steel Design Polished Piping Designed with Extra O2 Bung for Aftermarket Wideband Sensor Divorced Wastegate Flange Separates Exhaust Flow Exiting the Turbo Notes ***Will only fit MANUAL transmissions for Legacy and Outback models*** ***Tuning Required in order to keep vehicle running condition safe & optimize power of vehicle*** ***Not for sale or street use in CA & CARB states*** ***Item has potential to violate the Clean Air Act*** [tab] Brand: Invidia Catalytic Converter Included: Yes Hardware Included: Yes Mouth Design: Divorced Wastegate Piping Inner Diameter: 76mm Piping Material: 304 Stainless Steel Manufacture Warranty: 1 Year [/tab] [summary]For a strong boost in power, the Invidia Down Pipe offers an alternative to other power-boosting enhancements. To see just how much power the Invidia Downpipe can produce, a quick look at its dyno chart shows it easily added several horsepower to the stock exhaust system. Each Invidia Downpipe features a large 4" Stainless Steel bellmouth to enhance power by freeing excess gas. The Invidia Downpipe sports a one-piece design, eliminating the need for the stock catalytic converter. In addition, each Invidia Downpipe can be bolted up to any Invidia Exhaust or a stock exhaust for an easy installation.[/summary]