Porsche 991 GT3 / 911R Valved Side Muffler Bypass Pipes

$1,395.00

Shed 35 pounds and reduce heat soak while encouraging an exciting exhaust note from your GT3 while retaining valve functionality

+  Fits all Porsche 991.1 / 991.2  GT3 / GT3 RS models including 911R (2014+)
+  Weighs 35.4 lbs / 16 kg less than factory exhaust components (44.9 lbs vs 9.5 lbs)
+  Designed and built in-house at our Willow Grove, PA facility
+  All Soul Performance Products components are backed by our Lifetime Warranty for both street and track use

SKU: POR.991GT3.SMBV Categories: ,

Description

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

 

DEVELOPMENT AND TESTING:  Deleting the side mufflers yields huge weight savings, helps with heat management in the engine bay, and keeps the rear tires cooler. The hole leading into the secondary pipe is enlarged to equalize pressure in the center muffler – promoting longevity. Flex bellows allow for easy installation and increase durability under extreme racing conditions in a similar manner to OEM. Large 3″ diameter primary piping increases flow. High quality valves operate like factory.

SOUND:  The sound is smoother during the transition between open and closed versus a center muffler bypass. Valves closed tone is increased moderately while still comfortable with factory center muffler in place. Valves open reveals a refined, exotic pitch befitting of the high performance GT3 engine.

CONSTRUCTION:  Each set is made from mandrel bent T304L 3″ .065″ wall stainless steel tubing and high quality flex bellows for maximum durability.

BOLT ON AND GO:  Each exhaust is tested in a fixture to ensure perfect fitment and then foam packed to arrive in perfect condition, ready to install with no cutting or modifying required.

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

NOTE: O2 bungs can be added (to work with aftermarket headers that relocate the bungs to the SMB). We do not add them by default in the interest of lightness. Contact us for this option.

Reviews

  1. CobaltCr

    Just installed the valved bypass last night and connected to sharkwerks center. Sound at startup is amazing and the valves open is glorious. Haven’t had a chance to take a drive as it was pretty late when I finished. Will try to get some video but my guess is it will not be able to really capture the sound.

    Install was aided by my quick jack. Lifting the rear let the tires drop enough so I could reach the bumper screws without taking off the rear tires. I would not do this without taking off the rear bumper.

    Under load there is quite a bit of volume and resonance In the cabin. Cruising at highway speeds there is little to no drone. I can’t really tell a difference with the valves open or closed at highway speeds. The volume difference at idle and low rpm is quite noticeably less with valves closed.

    Hope that helps People who are considering a bypass. The soul side bypass is a great piece of kit and my experience has been very positive.

  2. Jack Ippolito

    I purchased the side muffler bypass from Soul PP. Well, all I can say is here is a company that screams performance and product development. They are so juiced up on making your car perform better, sound better, look better and just feel better. I had great experience there, the people there go out of the way to please you. They opened on a Saturday morning so I was able to pick-up my car, they went over pricing, gave me a private tour of the plant and it was a pleasure. John Gaydos who literally knows everything, and I mean everything about exhausts is the person I dealt with, but everyone else there I spoke to was equally knowledgeable and addressed all my concerns. Soul PP gets 5 stars from me! My GT3 sounds incredible and they also surprised me with a brand new set of 4” satin tips that look SICK!

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