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Center Muffler Bypass X-Pipe (Non-Valved Exhaust)
A center-muffler A crossover pipe joining the two exhaust banks into an X shape, smoothing flow for a fuller, balanced tone. for the Porsche 991 Carrera, pairing well with either the factory side mufflers or Fabspeed's Maxflo Performance Side Exhaust. It replaces the restrictive factory center muffler with a lightweight, high-flow X-pipe, substantially improving exhaust tone. Fabspeed's testing showed peak gains of 16 whp and 14 ft-lbs of torque, plus a 12 lb weight saving. It's built from CNC mandrel-bent T304L stainless steel and installs as a direct bolt-on replacement for the factory center muffler. This is for cars without a factory valved exhaust; fitting it to a valved car disables the exhaust sound button and leaves an empty space on the inner quad tips. Fits Porsche 991 Carrera vehicles without a factory valved exhaust from 2012 to 2016.
Frequently asked
Does the Center Muffler Bypass X-Pipe (Non-Valved Exhaust) fit my 911 Carrera?
This listing is specific to the Porsche 911 Carrera (991.1). 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 this work on my car if it has the factory valved exhaust?
You can fit it, but Fabspeed notes the exhaust sound button will no longer work and there'll be an empty space on the inner quad tips, since this replaces the center muffler and its second tip outlets.
How much power does this add?
Fabspeed's testing showed peak gains of 16 whp and 14 ft-lbs of torque.
My 2012 Carrera, is this the right generation?
2012 was a split model year between the 997.2 and 991, so confirm which generation your car is before ordering.
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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