T1R Sparrow Exhaust System – Subaru WRX STi 5dr (GRB) / WRX HB

The T1R Sparrow (76S) Cat-Back Exhaust is the ultimate combination of performance and street drivability. This exhaust combines the daily drivability of a high flow, stock style muffler with the performance potential of a full 3″ (76mm) exhaust. If you are looking for an exhaust that provides immediate bolt-on gains, has the ability to handle additional mods and tuning, and is just slightly louder than the stock exhaust during normal driving, this is the exhaust for you!

The T1R Sparrow features 3″ (76mm) piping throughout the exhaust with no bottlenecks splitted into dual 70mm. The Twin Cross muffler design enhanced a superior appearance and aerodynamic flow of the car’s underbody. During normal driving, the sport muffler, with the resonated b-pipe, keep exhaust noise levels similar to stock, but with a meaner growl. This design provides the exhaust flow needed for any power upgrades without excessive exhaust noise. During dyno testing, the 76S has shown it can easily handle over 50% gains in power. The T1R 76S provides the power potential of a single outlet 3″ race exhaust, but without the excessive noise of a race car.

Dyno results shown with just the T1R exhaust installed alone, it gained 14hp (at wheels) and 10 ft/lbs of torque which is pretty impressive for this single modification.