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Porsche 911 Carrera RSR Header Muffler Kit (1976-1989)

$2,595.95 - $3,995.95
(2 reviews) Write a Review
HP (whp):
+18
TQ (ft/lbs):
+17
WT (lbs):
-23
  • Carrera 3.2L Factory/OEM Oil Line Kit (Highlighted Oil Lines Included)
  • An optional upgrade for our Maxflo RSR Header/Muffler Kit, these Muffler Bypass Pipes mate directly to our headers, bypassing all mufflers to unlock a true Cup car sound. Easily convert back to the standard Fabspeed muffler at any time. (964/993 Bypass Pipe Pictured) Actual 911 Product may differ from photo.

This complete headers back high performance exhaust system provides loud & aggressive CUP car sound with dual outlets.

SOUND:

With free flowing headers straight into our Maxflo Muffler, expect a huge increase in volume over stock.

POWER:

This full exhaust system was designed to unleash as much power as possible with little compromise. On our DynoJet we saw peak curve gains of 17 whp and 13 ft/lbs of tq at 3900 RPM and maximum HP is increased by 12 whp and 11 ft/lbs of tq.

FEATURES:

  • Fits all Porsche 911 Carrera vehicles (1976-1989)

  • Peak curve gains of 17 whp and 13 ft/lbs of tq at 3900 RPM

  • Saves 23 lbs from the rear of the vehicle (depending on exhaust and tip option)

  • Loud and aggressive Cup car sound

  • Constructed from high quality 14-16 gauge, C.N.C. mandrel bent T304 stainless steel tubing

  • RSR Long-tube headers feature equal length primary pipes with F1 style high velocity 3-into-1 pyramidal investment cast merge collectors

  • Includes all required Hardware and Gaskets

  • Optional Muffler Bypass Pipes available for maximum weight savings, aggressive sound and increased peak horsepower - For Non-Sport Cat Configuration Only!

  • Available options include Heat Exchange, Sportcats &/or Tip

  • Simple DIY bolt-on installation, no cutting or welding required

  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

NOTE:

  • Requires slight modification to the factory rear bumper for proper fitment of the second outlets

  • To ensure proper header seal, after initial heat cycle, tighten all exhaust bolts to the OEM torque specs

Why We Choose HJS Catalytic Converters: 

HJS German imported catalytic converters are made from some of the highest grade material you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.    

Street Configuration 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. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is 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.

Race Configuration 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.

HP (whp):
+18
TQ (ft/lbs):
+17
WT (lbs):
-23

2 Reviews

  • 5
    Great product!

    Posted by Chad on 11th Jan 2016

    The sound is WAY different than the Supercup paired with the Euro pre muffler. I'd have to say it's more refined. It has more of a rumble at idle. But when you start driving, you get a lot more air-cooled sound. The car feels like it can breath better. Almost like it was choked before or another analogy is that it had pneumonia and now it doesn't. By the gauge, my engine temp is 50% cooler now. It's AMAZING. I think I lost a tad of mid-range, but top end is incredible. Car sounds incredible while cruising at 70 mph. It's like a sewing machine. Thanks again for a great product.

  • 5
    It's an instant rocket!

    Posted by Charlie on 27th Apr 2015

    Just took the 1987 911 Cabrio out for a quick spin after the install The motor was 3.2L, but its now a 3.5L with 9.5:1 pistons plus 8psi of supercharged boost; otherwise stock engine and pump fuel. Performance: Friggin' A! It's an instant rocket! The old stock 911 exhaust was choking the motor. Now, once it gets above 3k rpms it rises so quick you don't get a chance to shift and I swear the front end came off the ground. Wish I had done a before and after dyno! Sound: The muffler you offer is not too loud at idle. It's definitely above stock in dB and sound, but completely bearable. But, once you hammer it the sound is great. Not deep V8 rumble but rather a snappy 'Cup' sound for sure. Almost Indy!

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