It's pretty easy to make a make a catless downpipe that makes power.  It's much harder to make a downpipe with a catalytic converter yet...

The TurboXS 3 inch Downpipe to Stock Cat-back Adapter is designed to adapter your 3 inch downpipe to the donut style flange of your 2.5...

This is the gasket at the bottom of the Uppipe on EJ Engines.

Turbo Inlet Gasket for the FA24 7 Layer Multi Layer Steel

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...

Replacement Bosch VW Oxygen sensor for TurboXS Tuner-VW (Bosch Connector pictured)?

This gasket is specifically for the Gasket at the Rear of the W15-FP-1C.  *Not the standard 3 inch gasket*

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

The TGV to Intake Manifold gasket is a small but important part of your car's engine. It seals the TGV to Intak manifold, preventing...

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...

The TurboXS Battery Tie Down is the perfect part to replace the ugly stamped steel oem tie down. Made from 6061 Aluminum CNC Machined to...