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High Flow Sport Cat

A high-flow catalytic converter upgrade for Porsche 965, 964 Turbo and C2 Turbo cars (1990-1994) that no longer have a working catalytic converter, whether it was removed decades ago or has simply worn out. Fabspeed's 200-cell German manufacturer of the high-flow catalytic converters Fabspeed fits in its sport cat products. converter flows over 90% of a straight pipe, bringing these older cars back to EPA-compliant, European-homologated emissions standards while still improving throttle response. It's available in a street-legal sport cat configuration or a cat-bypass pipe for historic racing use, saves 15 lb from the rear of the car, and is built from 14-16 gauge CNC mandrel-bent T304L stainless steel for a direct bolt-on fit.
Frequently asked
Does the High Flow Sport Cat fit my 911 Carrera?
This listing is specific to the Porsche 911 Carrera (964). 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.
Is this for cars that already have a catalytic converter?
It's aimed mainly at 964 Turbo, 965 and C2 Turbo cars whose factory converter was removed or has worn out over the decades, bringing them back to emissions compliance.
How much does it flow compared to a straight pipe?
Fabspeed states the 200-cell HJS converter flows over 90% of a straight pipe.
Is there a race option?
Yes, it's available in a street-legal sport cat configuration, or as a cat bypass pipe intended for historic sports car racing.
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.
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