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Maxflo muffler cat-back Exhaust System
Maxflo Cat-back means everything from the catalytic converters to the tips; the factory headers and cats stay in place. exhaust system for the Porsche 964 C2, C4, RS America, Euro RS and Speedster (1989-1994), replacing the factory center and side mufflers with a single Maxflo muffler mounted behind the license plate. Built from 14-16ga CNC Bent over an internal mandrel so the tube keeps a constant diameter through the bend, unlike crush-bending. A grade of stainless steel used for exhaust tubing, chosen for heat resistance and corrosion resistance., it adds 15hp and 16 Nm of torque and saves 11 kg from the rear of the car, with a deep, throaty tone at street-appropriate volume. Available in single or dual outlet configuration, with 4-inch oval tips.
Frequently asked
Does the Maxflo muffler cat-back Exhaust System fit my 911 Carrera?
This listing is specific to the Porsche 911 Carrera (964). 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.
Is it emissions legal?
Yes, Fabspeed describes it as a cat-back system that's emissions legal while adding power.
Can I run single or dual outlets?
Yes, and you can switch between them at any time. Fabspeed includes a cap-off piece for single outlet running and you can add the second tip later to go dual outlet.
Will I need to modify my bumper?
If you want the dual outlet, standard 964s need a slight modification to the rear bumper for the second outlet, though Fabspeed notes wide-body dual-outlet cars need no modification.
How much power and weight does it change?
Fabspeed lists a gain of about +15 hp and +16 Nm of torque, plus a weight saving of about 11 kg from the back of the car.
Which option should I choose?
Single outlet ships with a cap-off block on the left side and needs no bumper work. Dual outlet requires cutting a second hole in the rear bumper cover (964 wide-body cars are already cut for it). You can start single and add the second tip later.
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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