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Titanium Rennsport Muffler
A titanium replacement muffler for the Porsche GT3 and GT3 RS (997.1 through 991.2, 2006-2019), built to fix the cracking and structural failures common to the factory titanium mufflers on GT3 RS models. Scanned from the OEM part for a perfect bolt-on fit, it opens the valve-open tubing to 2.75 inches and pairs with Fabspeed's investment-cast A crossover pipe joining the two exhaust banks into an X shape, smoothing flow for a fuller, balanced tone. for better cylinder scavenging. Porsche's seven-chamber internal design is replicated for a closed-valve note close to OEM and drone-free even with catless race headers, while Porsche Sport Exhaust: the factory valve system that opens the exhaust for a louder, more aggressive tone. function is fully retained. Paired with Fabspeed's Side Muffler Bypass Pipes it adds 27 lb-ft of torque and around 18 hp at the crank. Reuses OEM gaskets and hardware.
Frequently asked
Which cars does the Titanium Rennsport Muffler fit?
Fits your Porsche 991.2 GT3. Fabspeed lists this piece for: all Porsche GT3 and GT3 RS models from the 997. 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.
Why replace the factory titanium muffler?
The OEM titanium mufflers, especially on GT3 RS models, are prone to cracking and structural failure over time; this muffler is engineered to eliminate that issue.
Does it work with Porsche Sport Exhaust?
Yes, PSE valve functionality is fully retained, and with the valves open the titanium construction gives a more aggressive, higher-pitched tone.
How much power does it add?
Paired with Fabspeed's Side Muffler Bypass Pipes, it adds 27 lb-ft of torque and roughly 18 hp at the crank.
Does it need special hardware to install?
It reuses the OEM muffler band straps, bolts and gaskets, so keep those on hand (or order the listed factory part numbers) if yours aren't available.
Which option should I choose?
The tip choice is purely cosmetic and doesn't change performance: pick from carbon fiber, satin black, polished stainless steel, brushed stainless turndown, or titanium to match the rest of your GT3's finish.
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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