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...

License Plate Delete; Billet Aluminum; Black Anodized; CNC Machined "STi" Logo So you relocated your License Plate and now you have...

The TurboXS 2018+ Kia Stinger GT Hybrid Blow Off Valve is our newest blow off valve and is designed specifically to replace the stock...

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...

License Plate Delete; Billet Aluminum; Black Anodized; CNC Machined "TurboXS" Logo So you relocated your License Plate and now you have...

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

Turbo Inlet Gasket for the FA24 7 Layer Multi Layer Steel

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

TurboXS RFL Catback Exhaust for the Cobalt SS TC is just that "Really Fuckin' Loud".  As with anything we put our "RFL" tag on, this part...

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

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...