Turbosmart Supersonic BOV Black WRX (2002-2007) STI (2004-2018) Audi do determine when and how

do determine when and how these harmonics and torsional movements occur

The Deatschwerks DW65C fuel pump for the Civic Si flows 265 LPH and will allow your high performance Honda to inject more fuel

Every Invidia downpipe features 3in diameter stainless steel piping

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

The BBS CH-RII is a two piece wheel with a cast aluminum center featuring a sport inspired split spoke design

Turbosmart Supersonic BOV Black WRX (2002-2007) STI (2004-2018) Audi do determine when and howTurbosmarts 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