Porsche 991.2 Carrera (with PSE) Cat Bypass Pipes


Soul Performance Products Cat Bypass Pipes replace the restrictive factory catalysts with free flowing straight pipes to unlock an invigorating increase in turbo sound, engine note, and throttle response. Revel in the new sensation of sounds as the turbos sing and exhaust crackles on deceleration while enjoying the extra kick of 20 wheel horsepower.

+  Fits all Porsche 991.2 Carrera vehicles with Porsche Sport Exhaust / PSE (2017+)
+  Max gains of 20 whp and 21 ft-lbs of torque at 5,800 RPM as tested on a 2017 Carrera 4S with no other mods
+  Weighs 8.1 lbs  / 3.7 kg less than factory exhaust components (16 lbs vs 7.9 lbs)
+  Direct bolt on installation – hardware and instructions included
+  Retains use of factory turbo heat shields
+  All Soul Performance Products components are backed by our Lifetime Warranty for both street and track use

SKU: POR.9912PSE.CBP Categories: , ,


 SOUL  Competition
Lifetime Warranty including track use X
In Stock 0-6 Week Lead Times
Fitment Guarantee X
Best Value X


DEVELOPMENT AND TESTING:  We selected 3″ diameter piping to maximize exhaust flow and the sound of the turbos spooling – and oh do you hear them now.  We designed our Cat Bypass Pipes to have a straight through exhaust path with valves open in pursuit of maximum exhaust flow and power – if you’re deleting catalysts that is surely your focus! We’ve positioned the secondary tube into the Porsche Sport Exhaust where it is to keep the valves closed tone civil and refined while still receiving ample exhaust flow. It was also important that we retain use of the factory heat shields as to not heat soak the components around the turbos.

POWER:  We approached AWE Tuning about testing our development car at their state of the R&D facility for third party dyno results. We experienced max gains of 20 whp and 21 ft-lbs of torque at 5,800 RPM as tested on a 2017 Carrera 4S with no other mods. Peak power was up by 10 whp and 14 ft-lbs. BoostAddict upped power in their Carrera from a baseline of 344 whp and 326 ft-lbs of torque to 455 whp and 448 lb-ft of torque with our Cat Bypass Pipes and race gas tune.

CONSTRUCTION:  Each set is assembled out of thick wall .065″ T304L stainless steel and rigorously quality checked in-house. Smooth mandrel bends and thick flanges ensure product longevity.

BOLT ON AND GO:  Each product is tested in a fixture to ensure perfect fitment then foam packed to ensure it arrives in perfect condition. Thorough installation instructions are included in the box for a straightforward install that can be performed by most DIY enthusiasts.

CHECK ENGINE LIGHT?:  This product may trigger a check engine light due to removal of factory catalytic converters. O2 Spacers are available to reduce any chances of triggering a CEL. We suggest a custom ECU tune to disable any check engine lights (for track use only).

LIFETIME WARRANTY:  Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any questions or issues that you may have.

This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for closed course competition use only


  1. SeeForce (Rennlist)

    I had my morally reprehensible cat bypass pipes installed today. With the PSE open, the car brings out my inner hooligan and my initial impression is that i love it. with exhaust closed, sound isnt much different that stock. Also, Ive only driven 15 miles, but no CELs. fingers crossed.

  2. 911. (Rennlist)

    I did my catless Soul downpipes a month or so ago and its amazin, also have PSE, and the car is perfect in Sport/Sport+ in terms of overall sound/bark. The turbos are constantly whistling which really adds to the theater. There is slight drone in the 2100-2350 ish give or take 100 RPM in any of the sport modes. If you are cruising just keep it a gear higher or lower to stay out of that range.

    I am super happy with the sound, it sounds like a 4 or 5 liter TT now sorta to me.

  3. PCA1983 (Rennlist)

    I did catless pipes, and they are an awesome upgrade.
    Sound is now terrific with PSE turned on.
    And HP went up 20 Hp on a Mustang dyno, to 470 Hp on my C2S X51, while spool-up is a bit quicker.
    It’s a very cost effective upgrade!

  4. Efrain Irizarry


    I just put these on. I have Kline headers and BMC filter and Cobb.

    All I have to say is WOW!

    The crackles and pops are HUGE!

    It’s a beast in sports mode but refined and sophisticated with PSE off and in normal mode… so the neighbors can’t even tell that the hooligan down the street is home!

    John B. Is the man!

    Soul has my soul.

    I used to have 200 cell cats…… but this is delicious!!!!

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