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Maxflo Performance Side Exhaust System
Maxflo side exhaust system for the Porsche 991 Carrera (2012-2016), a direct bolt-on replacement for the factory side mufflers built from 14-16 gauge CNC Bent over an internal mandrel so the tube keeps a constant diameter through the bend, unlike crush-bending. T304L stainless steel. Compatible with the factory headers and center muffler, it saves 0.5 kg and adds peak gains of 15whp and 15 Nm of torque, with a deeper, throatier note through the rev range. Compatible with factory tips or Fabspeed's Deluxe Quad-Style Tips; best paired with a center muffler bypass A crossover pipe joining the two exhaust banks into an X shape, smoothing flow for a fuller, balanced tone. on non-Porsche Sport Exhaust: the factory valved exhaust with a driver-selectable loud and quiet mode. cars.
Frequently asked
Does the Maxflo Performance Side 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.
Will this alone make a big difference to the sound?
Fabspeed notes there isn't a significant sound advantage using these side mufflers alone with the factory non-PSE centre muffler; they recommend pairing it with their Centre Muffler Bypass X-Pipe.
How much power does it add?
Fabspeed's testing showed peak gains of 15 whp and 15 Nm of torque.
Does it save weight?
Yes, this system saves 0.5 kg versus the factory components.
Does it stay compatible with my factory headers and centre muffler?
Yes, it's compatible with the factory/OEM headers and centre muffler.
Which option should I choose?
The "34" and "38" prefixes match your engine: 34 is the 3.4L Carrera (non-S), 38 is the 3.8L Carrera S, each with a different tip size. Not stated on Fabspeed's own page; confirmed via the MAX34/MAX38 part numbers and third-party fitment listings for those SKUs, so double check against your car.
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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