BOV-SML Nipple and O-ring

The TurboXS Subaru WRX/STi 3 inch Downpipe to OEM Catback Adapter is the perfect solution when trying to mate a 3" Downpipe to the much...

The TurboXS EJ Engine cooling mod is easy insurance to help reduce knock on the CYL #4 by adding a direct path to cooling the #4...

WS08-HW-1 hardware for STI front mount intercoolers

The Genesis 2.0T Blow Off Valve Kit is a complete bolt on valve. Which allows you remove the factory bypass valve and replace it with our...

Are the Silicone Couplers and T-bolt Clamps on your old TurboXS Front Mount Intercooler looking a bit old and busted?  Buy a complete...

The Bov-XS-Soft spring is used on applications that have low or light vacuum source cars. Recommend for vehicles with around - 8 inHg.

The Bov-XS-RFL spring is used on applications that have low or light vacuum source cars. Recommend for vehicles with around greater than...

If you are looking for a replacement o ring kit for your XS Valve. Look no further, this is the replacement o ring set for the...

Grub Screws, Nuts & Allen Wrench used to secure the Universal valves to H Adapters. 

38mm Wastegate Tube - Stainless Steel

Specifically designed for MY 2002 - 2007 Subaru WRX and STi's will also fit the 2008-2012 STI, the WS-RBV requires no adapter kit to...