Fabspeed Motorsport

Fabspeed Shelby GT350 / GT350R Sport Catalytic Converters (2016-2020)


These Shelby GT350/GT350R Sport Catalytic Converters are the perfect solution for any street and track focused GT350/GT350R owner. Adding significant power and sound, you have the option to go with ultra high-performance HJS Catalysts. Check out our


Fits all Ford Shelby GT350/GT350R vehicles (2016-2020)

Impressive dyno proven power gains of 21 whp and 27 ft/lbs of TQ with the Sport Cats

The HJS Catalytic Converters will support 1200HP+

Designed from 3D scans using our Creaform Handyscan 700 and CAD designed so we can achieve perfect bolt-on fitment

German-made HJS HD tri-metallic 200-cell EURO 6 homologated catalytic converters for best performance and reliability - the largest catalytic converters that will fit in the factory location for maximum flow

Fabspeed is the exclusive North American & South American importer and distributor for HJS Emissions Technology with HJS warranty

Flows 90%-93% of a straight pipe

Optimized for maximum performance with NO catalyst generated check engine light, guaranteed

No ECU tune required

NOT EPA or CARB Certified

Constructed from CNC mandrel-bent T304L stainless steel

Simple DIY (Do-It-Yourself) bolt-on installation, no cutting or welding required

All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

Why no harmonic balancers like the factory downpipes? After careful engineering and thousands of miles of testing, we have found that the harmonic balancers are not necessary for our Sport Cats. This is because we are using a thicker gauge of tubing than the factory, which changes the harmonics of the pipe and improves durability.