Huge bolt on replacement core that is 3.5" x 11.75" x 24" dwarfing the stock core. The bar and plate core design dramatically improves...

This Bosch knock sensor is a replacement for the knock sensor that is included with the TurboXS Tuner-Pro.

Application Model Years: 2004-2006 STI,LGT,FXT,BAJA (All Side Feed Injector 2.5L Engine).  Please go to the Download Section for the to...

All 304 Stainless Steel construction with 3.5 inch double walled rolled tip and now with 3 inch piping. The FXT-RMA is a direct...

Application Model Year: 2002-2005 WRX.  Please go to the Download Section for the to the Download Section for the Instruction Manual,...

The largest and best FMIC for your 2010-2012 Gencoupe!    Why do you need this: One of the main causes of inconsistent horsepower output...

The largest and best FMIC for your 2013-15 Gencoupe!     One of the main causes of inconsistent horsepower output from your Gencoupe is...

The TurboXS kit mounts the blow off valve on the throttle body nicely. Stainless steel T bolt clamps and multi ply silcone used to keep a...

The HKS kit mounts the blow off valve on the throttle body nicely. Stainless steel T bolt clamps and multi ply silcone used to keep a...

Application Model Year: 2006-2011 WRX / 2007+ STI/LGT/FXT/BAJA; Outside of the US: 2006+ Top Feed Injector Vehicles only.  Please go to...

TurboXS Internal Wastegate Bracket is designed to fit IHI Turbochargers when switching to an External Wastegate configuration. This...

The Greddy Kit mounts the blow off valve on the throttle body nicely. Stainless steel T bolt clamps and multi ply silcone used to keep a...