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Rennkraft Modular GTLM Exhaust Package
A patent-protected long-tube headers-to-tips exhaust system for the 992 GT3/GT3 RS, built around Fabspeed's RENNKRAFT modular design that swaps between catted and cat-bypass rear sections using quick-release V-band clamps. Equal-length headers with Formula 1/IndyCar-style Where header primary tubes join into one pipe, shaped to smooth exhaust pulses and improve scavenging. feed a 2.75in/70mm cast A crossover pipe joining the two exhaust banks into an X shape, smoothing flow for a fuller, balanced tone. and large 200-cell HJS catalytic converters, built from T321 stainless steel. It adds 35 hp and 39 lb-ft of torque at 4250 rpm and saves 18 lb (8.2 kg), with a loud, popping character that trades some day-to-day drone for a race-bred sound. On EU cars it deletes the Gasoline particulate filter, an emissions device fitted to EU-spec cars downstream of the catalytic converters. and will trigger a check engine light unless run with a simulator or tune.
Frequently asked
Which cars does the Rennkraft Modular GTLM Exhaust Package fit?
Fits your Porsche 992 GT3. Fabspeed lists this piece for: all Porsche 992 GT3, GT3 RS Models Worldwide (This system does delete the GPF on EU cars, and will cause a check engine light for a monitored GPF system unless a simulator or tune is used). 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.
Can I switch between catted and cat-bypass configurations later?
Yes, the RENNKRAFT system uses quick-release V-band clamps so you can swap sections for track events without buying a whole new exhaust.
Does this cause any extra drone or cabin noise?
Yes, Fabspeed notes some interior drone and reduced day-to-day livability as the tradeoff for the weight savings and race-bred sound.
Does this affect EU-spec cars differently?
Yes, on EU cars it deletes the GPF and will cause a check engine light for the monitored GPF system unless a simulator or tune is used.
How much power does it add?
Fabspeed's dyno testing showed peak gains of 35 hp and 39 lb-ft of torque at 4250 rpm, with usable gains across the rev range.
Which option should I choose?
The catted configuration keeps you closer to emissions compliant day to day; add the cat bypass pipes if you want a fully open track setup you can swap in via the V-band clamps for events. Tip material is otherwise a finish choice.
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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