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991.2 GT3 / GT3 RS Long Tube Competition Race Header System
Long tube competition race headers with integral side-muffler bypass pipes for the Porsche 991.2 GT3 and GT3 RS 4.0-litre engine (2017+), designed for closed track and off-road use. The headers were co-developed with Burns Stainless in California using Where header primary tubes join into one pipe, shaped to smooth exhaust pulses and improve scavenging. hand-finished for flow, and the bypass pipes use Butterfly-style exhaust valves controlling exhaust flow and sound, built with Inconel-bearing spindles for high-temperature durability. also used by Porsche, McLaren and Ferrari. The system cuts 40 lb (18.1 kg) from the rear of the car and sharpens throttle response and exhaust sound. Built from T304 stainless steel, CNC mandrel-bent in-house, with a simple bolt-on install that can be removed for emissions testing. This is a track and off-road product, not intended for public roads.
Frequently asked
Does the 991.2 GT3 / GT3 RS Long Tube Competition Race Header System fit my 911 GT3 RS?
This listing is specific to the Porsche 911 GT3 RS (991.2). 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 legal for street use?
No, Fabspeed states it's intended for closed track events and off-road use only, not for driving on public roads.
Does it remove the catalytic converters?
Yes, the integral side muffler bypass pipes remove the cats, so expect a check engine light on OBD2 cars.
How much weight does it save?
Fabspeed states a 40 lb (18.1 kg) reduction from the rear of the car.
Can I still pass emissions testing with this installed?
Yes, it's a simple bolt-on system so it can be removed and the factory parts reinstalled for emissions testing.
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.
