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Valved Exhaust System
Fabspeed's valved exhaust system for the Porsche 991 Carrera, replacing the restrictive OEM side and center mufflers for a deeper, throatier note with more power and throttle response. The package bundles the 991 Carrera Maxflo Performance Side Mufflers with Deluxe Quad-Style Tips and the 991 Carrera Valved Center Muffler Bypass X-Pipe, built from 14-16 gauge CNC mandrel-bent T304L stainless steel, and it saves 13 lbs versus the factory components. Fabspeed's testing showed the biggest gains at 3900 rpm: 23.48 whp and 31.63 ft-lbs of torque. All components bolt directly on, and the system doesn't trigger a check engine light while complying with most emissions regulations. A valve controller kit is included if you choose the Standard Exhaust option. Fits all Porsche 991 Carrera vehicles from 2012 to 2016.
Frequently asked
Does the Valved Exhaust System 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.
What's included in this system?
The 991 Carrera Maxflo Performance Side Mufflers with Deluxe Quad-Style Tips, plus the 991 Carrera Valved Center Muffler Bypass X-Pipe.
Will this trigger a check engine light?
No, Fabspeed says it doesn't trigger a check engine light and complies with most emissions regulations.
How much power does this add?
Fabspeed's testing showed the biggest gains at 3900 rpm: 23.48 whp and 31.63 ft-lbs of torque.
Which option should I choose?
Choose Standard Exhaust if your car doesn't have factory Porsche Sport Exhaust; Fabspeed includes a valve controller kit with that option so you can operate the valves. Choose PSE if it's already equipped, since the system reuses the existing controls. Tip finish (polished, satin black, or carbon fiber) is a styling 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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Valved Center Muffler Bypass X-Pipe (Valved Exhaust Only)
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XperTune Performance Software
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