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Discussion Starter · #1 ·
Soul Performance Products is proud to offer a valved exhaust for GT4 / Boxster Spyder owners who are looking for a refined increase in volume and aggression with an exhaust that's backed by a warranty for track use. There are plenty of race systems available, and we want to offer a more sophisticated option. We know that a lot of owners plan on running race headers on the street as well as the track and minimizing drone was a goal of ours.





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. Choose from single wall stainless tips (slash cut or straight cut) in our signature satin or brushed finish or chrome double wall tips.





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 valve 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 or answer any questions that you may have.





Video:
SOUL Valved Exhaust + 200 cell catted headers


Honest review from GT4 owner who approached us looking for a more refined option than the valvetronic exhaust system currently on his car:
"Nothing like a rush hour trip to check for exhaust drone. It’s just about perfect. Unlike the original, it even sounds like an internal combustion engine with valves closed. And above 4k it even sounds good with valves closed. But with valves open it sounds great. Not quite as loud as (competitors system), but also not as ragged and shriek-y. Better in all categories; sounds like a tuned engine. AND THE DRONE IS GONE. It’s not quiet (which I didn’t want). You know the engine is running (which I did). But you also know what your passenger is saying. This is really what I wanted in the first place. Thank you."



IN STOCK AND READY TO SHIP!
Contact us any time with questions, customization requests, to order, or find your nearest SOUL dealer / installer

PRODUCT PAGE
Email: [email protected]
Phone: 855-486-1400
IG: @soulperformanceproducts
 

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How much does it weigh compared to stock?
 
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Discussion Starter · #3 ·
How much does it weigh compared to stock?
The factory system weighs around 39 lbs. Each SOUL exhaust side weighs approximately 13.2 lbs, X-pipe with clamp weighs 3.2 lbs, and a pair of single wall tips with Mikalor clamps registers at 2.8 lbs. Total for SOUL - approximately 32.4 lbs.
 
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Discussion Starter · #4 ·
We had the pleasure of getting to know Rennlist member DiabloBlanco and helping him outfit his Boxster Spyder with our Valved Exhaust. Tom was looking for a deeper sound out of his exhaust system and as he lives in CA, has CARB to consider. Fast forward to today and we're happy that he found exactly what we was looking for!

"I think the sound is awesome. Actually perfect. The goal was to create a deeper note but preserve the Porsche frequency (if that makes sense). I have only driven the car for 30 min or so but WHOA, what a difference. Even with the valves closed, it’s a little more aggressive than before. The installer said it sounds more like a GT3 now. He was pretty pumped up after installing it and was impressed."



 

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That sounds really nice on a turbo'd car.
Can you post a direct comparison to a flat 6 981?
 
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Discussion Starter · #8 · (Edited)
Bill just stopped in again the other day as we noticed some missing hardware on his headers during the exhaust install; we put in fresh Porsche hardware. Here's another quick video of some revs with valves closed and open.

https://www.youtube.com/watch?v=p6EuZThAhx0

-Mike S
 
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Discussion Starter · #10 ·



Satin Black tips are now available in both slash cut and straight cut for our Boxster / Cayman Valved Exhausts! We take our signature satin tips and have them PVD coated for a long lasting, extremely durable finish.The tips are a beautiful satin finish with a black chrome SOUL logo.
 
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Discussion Starter · #11 ·
Don't settle for a valved exhaust that will simply offer you "loud", and then "louder" sound levels.

SOUL mufflers are designed to combat droning through an abundance of high quality sound deadening material and pipe routing to ensure your cruising is civil - while your track days can still be thrilling.



In stock with tips ready to be customized to your liking. We're always here to answer any questions that you may have!
 
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Discussion Starter · #12 ·
SOUL Valved Exhaust with factory headers (pardon the potato cam quality):

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Discussion Starter · #14 ·
A customer approached us looking for a header solution that would make power while passing sound restrictions at Laguna Seca. While we do warranty our catted headers for track use, this GT4 is primarily used for track duty and catalysts would be a restriction - but customer was worried catless headers would be too loud. We proposed a solution involving our catless Competition Headers and our bolt-in x-pipe with custom turn down tips that could be angled away from the sound meter to pass notoriously strict sound limits. We're happy to report that this GT4 setup passes at Laguna coming in at under 92 dB with valves closed - customer uses a GPS controller to shut the valves strategically before reaching the metering station.This car is equipped with our Competition Headers and bolt-in X-pipe with custom turn down tips. Power is increased with an ECU Tune. Suspension is modified with JRZ two way coilovers, TPC droplinks, and more.

 
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Discussion Starter · #16 ·
We just installed our full Competition Package on a GT4 which includes our Valved Exhaust and Competition Headers! The owner was quite thrilled with the lack of drone given the aggressive exhaust setup - exactly what our system was designed to do! If you have any questions about upgrading your GT4's exhaust let us know!



 
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