Turbosmart Supersonic BOV Black WRX (2002-2007) STI (2004-2018) Audi We recommend the chromoly-steel flywheel

We recommend the chromoly-steel flywheel for street applications and aluminum flywheel for only race applications

- The braces are beefy

Grimspeed's new Subaru BRZ/Scion FR-S hood struts were designed in-house

F10 BMW M5 2012+

The specs for this silver Gram Lights 57FXX Wheel are 19x9

Turbosmart Supersonic BOV Black WRX (2002-2007) STI (2004-2018) Audi We recommend the chromoly-steel flywheelTurbosmarts loudest blow off valve, the Supersonic for the Subaru WRX STI is sure to turn heads wherever you are. This valve is ideal for both street and race cars and produces the signature Supersonic sound. It is fully atmospheric and features a "tool free" adjustment setup by turning the cap of the valve. Included is an aluminum weld on flange and quick release v band clamp for your Subaru STI. FITMENT: Subaru STI 2004 2018 Subaru WRX 2002 2007