Genuine HJS Tuning catalytic converter cores for replacement/upgrade of restrictive factory cats.  This is an individual catalyst; welding required.           ...

Genuine HJS Tuning catalytic converter cores for replacement/upgrade of restrictive factory cats.  This is an individual catalyst; welding required.          ...

Genuine HJS Tuning catalytic converter cores for replacement/upgrade of restrictive factory cats.  This is an individual catalyst; welding required            ...

Take your 570S to a completely new level of power and excitement with approximately 700 horsepower on tap by upgrading the exhaust, catalytic converters, and ECU tuning parameters. Includes...

XperTune Performance software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure. Achieve maximum power...

Replaces the restrictive factory cats or illegal catbypass pipes with the world's largest high-performance German-imported 200-cell HJS sport catalytic converters for significantly improved...

This downpipe feature German made HJS 200 cell EURO 6 compliant trimetallic catalytic converters. We use 4 in piping from the engine side to the cat, and 3 in tubing from the cat to the rest of the...

The 2020 Z4 is BMW's latest incarnation of the Z4, keeping its reputation alive and well as a powerful and fun roadster. The Z4 M40i dramatically benefits, in terms of sports car sound and...

This downpipe feature German made HJS 200 cell EURO 6 compliant trimetallic catalytic converters. We use 4 in piping from the engine side to the cat, and 3 in tubing from the cat to the rest of the...

Replaces the restrictive factory cats with the world's largest HJS German Imported European Certified European Homologated USA EPA compliant ultra high-performance 200-Cell sport cats for...

Replaces the restrictive factory Ferrari ceramic catalytic converters with the world's largest HJS German Imported European Certified European Homologated USA EPA compliant ultra high-performance...

Purchase Disclaimer: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable,...

The 2020 Supra 3.0 liter 6 cylinder is Toyota's anticipated return to the sports car relm. The Supra is a true enthusiast car and it dramatically benefits from a Fabspeed Motorsport Sport Cat...