Valvetronic Designs SHUTO™ Valved Catback Exhaust for Subaru WRX / STI (FA20)

The Subaru WRX has always been about excitement, a car that delivers raw performance and a unique driving experience in a package that has become iconic among enthusiasts. The FA20 turbocharged engine has incredible potential, but the factory exhaust system does not allow it to truly shine. With the SHUTO™ line, Valvetronic Designs set out to deliver an exhaust solution that unlocks the full sound character of this platform while providing the flexibility modern drivers demand.

Purpose-Driven Engineering

This exhaust is available in both high quality T304 stainless steel and our burnt grade 5 titanium, giving owners the choice between two uncompromised materials. Larger piping size improves flow, reduces back pressure, and sharpens throttle response, while the inclusion of electronic valves provides seamless flexibility. With valves closed the system keeps the car composed and quiet enough for daily use, while valves open reveal an aggressive and raw tone that fully highlights the signature Subaru rumble. Beautifully finished exhaust tips complete the look, ensuring that performance is matched by aesthetics.

Fitment

• 2015-2021 Subaru FA20 WRX

Key Features

• Available in T304 stainless steel or burnt grade 5 titanium

• Full valved cat back design providing quiet refinement and aggressive open tone

• Larger 3.5 inch piping size for improved exhaust flow, power, and response

• Electronic valve hardware for rapid and reliable open and close function

• Included exhaust tips designed to complement the WRX’s rear styling

• Direct bolt on fitment with no cutting and no welding required

The Result

With this system installed the WRX FA20 gains the flexibility it has always been missing. Quiet when you need it to be and aggressive when you want it, this exhaust setup transforms the driving experience by bringing out the rumble and excitement Subaru owners have always craved. The sound is smoother, sharper, and more dynamic than anything offered from the factory, making every drive more engaging. At Valvetronic Designs we are often imitated but never duplicated, and this system shows why, delivering a truly uncompromised sound experience for Subaru enthusiasts.