Porsche 718 Boxster / Cayman SOUL Valved Exhaust System


Premium quality mufflers allow for a refined, drone free exhaust experience without ever being overbearing – even with upgraded downpipes! Just as quiet as PSE with valves closed, and respectably more aggressive with valves open.

+  Fits all Porsche 718 Cayman / Boxster vehicles (2017+)
+  Direct bolt on installation – instructions included
+  Valve controller kit included – necessary for cars without PSE and optional for cars with PSE to provide manual valve override
+  All Soul Performance Products components are backed by a renowned Lifetime Warranty for both street and track use

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DEVELOPMENT:  Our goal was to offer a valved exhaust that delivers a refined cabin presence. It is easy to increase the volume of the 718, but a challenge to bring out a more aggressive note while making the flat four sound distinctly Porsche which is a common complaint. The turbo and large amount of sound deadening in the 718 do a great job of keeping the cabin calm, but raising the volume to compensate can bring out negative notes in the exhaust such as rasp and drone. We applied the same design principles as our renowned Valved Exhaust line for previous Boxster / Cayman generations to deliver a refined increase in sound that will also pair well with an upgraded, freer flowing downpipe to yield a mature exhaust note without ever being overbearing. This is a superior option for cars not equipped with the Porsche Sport Exhaust from the factory.

CONSTRUCTION:  Each system is made from mandrel bent T304L stainless steel tubing (featuring 2.5″ OD over axle pipes) and features mufflers with fortified casings in the interest of durability. With valves closed the exhaust gasses are routed into the SOUL muffler, which is packed with high quality sound deadening material designed to withstand abuse and not blow out over time. The mufflers are incredibly effective at minimizing drone. Exhaust gasses make their way through the muffler and out through perforations into the outer piping. With valves open, exhaust gasses are now free to exit out through large 2.5″ piping while perforations allow exhaust gasses to “talk” with the muffler, encouraging a fuller, more robust tone.

SOUND:  You could describe the sound experience as PSE Plus! The tone in the cabin with valves open is about the same as PSE, not intrusive at all. Under heavy load the volume difference is noticeable, more aggressive while still refined. With valves closed, you can carry on a phone conversation on the highway without any intrusion from the exhaust. When paired with an upgraded downpipe / catalytic converter the exhaust offers a respectable level of snarling and crackling without droning at all RPM and throttle loads. Sport mode unleashes an increase in crackles and burbles.


VALVE OPERATION:  A valve controller is included with every system and is required for non-PSE cars. PSE equipped cars will retain full factory functionality by using the factory vacuum lines. The valve controller is optional for PSE equipped cars and allows full valve control at all times. Valve functionality can be controlled by the factory PSE button, included valve controller fobs, and with HomeLink buttons.

TIPS:  Choose from several different tip styles and finishes. Single wall tips have around a half inch of depth adjustment to allow for the tips to be sunk in to just show the logo at their deepest and pulled out more if desired. Double wall chrome tips are longer in length by 1″ and protrude from the bumper aggressively.  Logo customization is available, please contact us.

BOLT ON AND GO:  Each exhaust is rigorously quality-checked, tested in a fixture to guarantee 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.

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 or answer any questions that you may have.


  1. Charles DeMarco

    The crew at Soul Performance has an ear for excellence! I purchased a 718 because the acceleration and overall handling exceeds former models of Caymans. However, the flatulent stock sound of the flat four left a whole in my heart in an overall amazing sports car. With some wizardry and awesome exhaust knowledge I now have a great sounding and handling track machine. Highly recommended for any sports car performance and sound but if you have a 718 then look no further and let that music ring. Thanks guys!!

  2. Brian Benjamin

    Both the products and the people at Soul Performance are truly top notch. I paired this valved exhaust system with their sport downpipe and it has really made the car come alive. I’ve had the system with no issues for a couple years now and whenever I have any questions or concerns, I can always count on the guys at Soul HQ to get back to me right away. I am convinced that pairing this valved system with a sport downpipe is a better package than the factory sport exhaust, giving you more range of volume and tone to choose from. The upside is that the valves can also be programmed to your homelink garage door opener buttons in the vehicle, so it’s easy to adjust on the fly without using the wireless remote. Nothing but great things to say about this system!

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