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Center Muffler Bypass Pipe
A direct replacement for the Porsche 991 GT3/GT3 RS's failure-prone OEM center muffler, improving flow, saving weight, and adding a more aggressive sound. Its crossover design blends exhaust from the right and left cylinder banks for a smoothly blended tone, and a simplified two-bolt mounting system makes installation easier than the factory unit. It works with the factory headers, cats, and side mufflers, retains the OEM valve system for full sound control, and saves 10 lbs from the rear of the vehicle. Built from 14-16 gauge T304 stainless steel, it's compatible with the rest of Fabspeed's GT3 performance lineup and includes 4-inch Deluxe Dual Style tips in your choice of finish. Fits all Porsche 991 GT3/GT3 RS vehicles from 2014 onward.
Frequently asked
Which cars does the Center Muffler Bypass Pipe fit?
Fits your Porsche 991 GT3. Fabspeed lists this piece for: all Porsche 991 GT3 / GT3 RS vehicles 2014+. 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.
Will my Sport Mode button still work?
Yes, it retains Sport Mode control when used with the factory side mufflers, and the OEM valve system keeps its full sound control.
How does this compare to the factory muffler?
Fabspeed says the factory unit is failure-prone; this replacement improves flow, saves 10 lbs, and uses a simpler two-bolt mounting system.
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.
