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Rennkraft Modular Sport Catalytic Converters
Modular Sport Catalytic Converters for the Ford Shelby GT350 and GT350R (2016-2020), using a quick-release V-band connector so you can swap between German-imported Fabspeed's German catalytic converter supplier; HJS cores flow close to a straight pipe while still scrubbing emissions. 200-cell cats for daily driving and cat-bypass straight pipes for closed-course track days, without cutting or welding. With the Sport Cats fitted, dyno testing showed gains of 21 whp and 27 ft-lb of torque at 7100rpm (about 25 hp at the crank), with no catalyst-related check engine light. Built from CNC mandrel-bent T304L stainless steel and 3D-scanned for a precise bolt-on fit, the HJS cores support over 1200hp and need no ECU tune. Swapping to the included cat-bypass pipes for track events avoids catalytic converter wear during hard use.
Frequently asked
Which cars does the Rennkraft Modular Sport Catalytic Converters fit?
Fits your Ford Shelby GT350 (2016-2020). Fabspeed lists this piece for: all Ford Shelby GT350/GT350R vehicles (2016-2020). Exact fitment for your year, trim and options is confirmed on your free consult before anything is ordered.
What does the price include?
The delivered price includes the part from Fabspeed USA, freight to Australia, import costs and GST. Enter your postcode to refine delivery; the final figure is confirmed on consult.
How long until it arrives?
Every Fabspeed part is made in-house at Fabspeed USA with about a one-week production lead time, then allow another 3-4 days for delivery to Australia via UPS. That freight is already included in the price.
What's the point of the V-band quick-release design?
It lets you switch between the HJS Sport Cats and the included cat-bypass "straight pipes" without cutting or welding, so you can run cats day-to-day and swap to bypass pipes for closed-course track events.
How much power do the Sport Cats add?
Dyno testing showed 21 whp and 27 ft-lb of torque at 7100rpm, roughly 25 hp at the crank, with no ECU tune needed.
Are these street legal?
Fabspeed's own notes state this product is not EPA or CARB certified and isn't intended for street-driven vehicles - check your local laws before fitting.
Will the Sport Cats trigger a check engine light?
No, Fabspeed guarantees no catalyst-generated check engine light with the Sport Cats installed.
Who installs it?
Rennen Motorsport in Adelaide, or an authorised dealer near you. Fitting it yourself may also be an option depending on the part, so raise it on your consult; professional installation is quoted separately.
Is it covered by warranty?
Fabspeed products carry the manufacturer's warranty, supported locally through Rennen Plus as the Australian principal. See our returns policy.
Can I just buy this outright, or do I need to talk to someone first?
Every enquiry, whether it's one part or a full build, starts with a free consult. We confirm the exact spec for your car before anything is quoted or ordered.
