Porsche 981 Boxster / Cayman Valved Exhaust System


Porsche fits a restrictive and bulky exhaust system onto the 981 Cayman / Boxster, robbing it of its natural power and sound. By reducing weight and implementing a valve system that offers a true night and day difference, you will instantly gain the response, character and sound that your car deserves. While in quiet mode with the valves closed you will have a refined, sporty sound with no drone and retain the ability to quietly enter and exit your neighborhood without annoying those around you thanks to the high quality mufflers. Unlock the valves and you’ll be ready to turn off the radio, roll down the windows and hit your favorite back roads or go hard at the track.

+  Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016)
+  Direct bolt on installation – instructions included
+  Choose from Polished Chrome or our Signature Single Wall Stainless tips
+  Valve controller kit included – necessary for cars without PSE and optional for cars with PSE to provide manual valve override
+  All Soul Performance Products are backed by our Lifetime Warranty for both street and track use

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Product Description


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


DEVELOPMENT:  We wanted to be certain that our system offered a superior spectrum of sound – Cup car inspired with valves open but with a refined, no droning tone with valves closed. The Soul mufflers practically eliminate droning – even with aftermarket headers the sound is reserved in the cabin with valves closed!

CONSTRUCTION:  Each system is made from mandrel bent T304L stainless steel tubing and features mufflers with fortified casings in the interest of durability. You can order this exhaust to suit your specific aesthetic desires – select tips of your choosing. Either at the car show or the race track, you can drive in confidence knowing that you have the best sounding, best performing exhaust backed by the industry leading Soul Performance Products Lifetime Warranty.

BOLT ON AND GO:  Each exhaust is rigorously quality-checked and tested in a fixture to ensure perfect fitment. Thorough installation instructions are included in the box for a straightforward install that can be performed by most DIY enthusiasts. Valves are controlled by the existing PSE button, our valve controller fobs, and are compatible with HomeLink!

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 issues that you may have.


  1. I drive a 2016 Porsche Cayman S. I have always been heavy into modifying everything I own, The Cayman is no exception. Immediately I was intoxicated with the sound of the PSE exhaust from the factory yet I knew that would not last long. Within 2 months of having the car I ordered Fabspeed Catless Headers. Installing these was nothing short of “frustrating”. Nothing seemed to fit and align like factory. I ended up having to create my own thin socket on the lathe in order to reach several bolts into the head. a 5″ bolt and nut was required to force alignment of the fabspeed kit to the factory PSE. When it was finally done…It sounded incredible. So loud and So aggressive. I was hooked. Dyno numbers for this system on a mustang dyno were 315 Whp and 275 tq with other supporting mods and CB tuning/ Euro Dynamics Tune. I drove the car like this for several months.

    Fast forward to April, I was contacted by Soul Performance and propositioned with replacing my current exhaust system for their full LONG TUBE headers and valved exhuast. I was happy with my set up so why would I change? Well I was intrigued by the idea of more exhaust allowing for some more usable power. Also upon seeing their product and quality control I knew they were going to be a serious contender to the market. I wanted in and agreed. I dropped my car off for less than a week while they test fit and installed the exhaust. I didn’t expect much in terms of sound nor power pick up being i already had a full catless set up….I was BLOWN AWAY when i picked the 3.4 Cayman up. It sounded like a GT3, like a Porsche should sound! Power, Respect, and Deep noted. I fell in love all over again. I could not stop manual shifting the car just to hear the backfires and gurgles. I took the long way home that day.

    Several days later on the same exact tune, at the same shop as before, and almost identical weather aside from a few degrees hotter (78 vs 69 the last test) I dyno’d the car once again. 326 whp and 287 tq!!! from an exhaust change. Those gains are no joke and it is felt through out the entire rev range. If I was purchasing an exhaust for a Porsche again. I would not look anywhere else but Soul Performance. I went in not expecting much and left with an exceedingly good experience. The finish resembles titanium, and the badass sound have gotten me nothing but compliments and thumbs up everywhere I go. Please see photos and video for an idea of sound but these do not even do justice. I Highly Recommend SOUL PERFORMANCE.

  2. It’s exactly what I was hoping for. Rather similar to stock (like a better version of stock) with valves closed which keeps my HOA happy but the valves open sound is insanely awesome. Your headers are on my Christmas list, thanks very much guys

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