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Porsche 911 Carrera European Pre-Muffler Cat Bypass Pipe (1976-1989)

Excluding GST
Replaces factory catalytic converters with a straight-thru resonated European design for increased flow, resulting in more horsepower and improved throttle response.
Getting rid of the factory catalytic converter will dramatically increase the volume of your exhaust and release more of that signature air-cooled flat 6 sound. A straight through resonator is incorporated into the design so you won't get any of that rasp associated with straight piped cars.
An excellent way to increase power on your classic 911. On our DynoJet we saw peak curve gains of 21 whp and 17 ft/lbs of tq at 4500 RPM, and maximum power increases 16 whp and 16 ft/lbs of tq.
Fits all Porsche 911 SC and Carrera vehicles (1976-1989)
Adds 16+ whp and 15+ tq and significantly increases throttle response while saving 8 pounds
Improved sports car sound- gutsy european pre-muffler style
Includes straight-through resonator with stainless steel wool packing to last
Includes O2 sensor bung so the fuel injection system can automatically adjust mixture/idle/part throttle for maximum performance
Constructed from mandrel bent T304L stainless steel
Simple DIY bolt-on installation, no cutting or welding required
All Fabspeed performance products are backed by the
Fabspeed Lifetime Warranty
DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only, never to be driven on public roads. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
  • 911 Carrera Cat Bypass & Sport Cat.pdf
  • HP (whp): +18 TQ (ft/lbs): +21 WT (lbs): -8