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Rennkraft Modular Sport Catalytic Converters
Patented modular Sport Catalytic Converters for the Ford Shelby GT500 (2020-2022), using a quick-release V-band connector to swap between German-imported Fabspeed's German catalytic converter supplier; HJS cores flow close to a straight pipe while still scrubbing emissions. 200-cell HD cats for daily driving and included cat-bypass pipes for closed-course track days, without cutting or welding. The Sport Cats give a more aggressive, raw exhaust note with sharper high-frequency tones and no interior drone with the stock muffler in place, and 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. This RENNKRAFT system holds a US patent and is the only one of its kind.
Frequently asked
Does the Rennkraft Modular Sport Catalytic Converters fit my Shelby GT500?
This listing is specific to the Ford Shelby GT500. 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 benefit of the V-band design?
It lets you swap between the HJS Sport Cats and the included cat-bypass pipes without cutting or welding, so you can run cats on the street and switch to bypass pipes for track days.
Will this trigger a check engine light?
No, Fabspeed guarantees no catalyst-generated check engine light with the Sport Cats installed.
Is this a patented design?
Yes, the RENNKRAFT modular system has been awarded a US patent and Fabspeed states it's the only system of its kind.
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.
