SOUL | 718 GT4/Spyder Exhaust Development
#812
Instructor
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https://www.youtube.com/watch?v=bj3xfUdt3Cw&t=67s&ab_channel=ObsessedGarage
https://www.youtube.com/watch?v=-y7Rjr6osDc&t=387s&ab_channel=ObsessedGarage
Matt had resonators on his I believe.
https://www.youtube.com/watch?v=-y7Rjr6osDc&t=387s&ab_channel=ObsessedGarage
Matt had resonators on his I believe.
Last edited by RavinS4; 04-05-2021 at 08:34 PM.
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No Name (04-05-2021)
#813
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Had a great conversation with John earlier today. Super knowledgable and was kind enough to sit on the phone and answer ALL my questions. Thank you!
Just ordered (via Momentum Worx) the Soul Race Exhaust (Resonated). Also got the slash cut (signature satin) tips from Soul.
Drone is not a big deal to me... even on a daily driver![burnout](https://rennlist.com/forums/graemlins/burnout.gif)
Just ordered (via Momentum Worx) the Soul Race Exhaust (Resonated). Also got the slash cut (signature satin) tips from Soul.
Drone is not a big deal to me... even on a daily driver
![burnout](https://rennlist.com/forums/graemlins/burnout.gif)
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*LongFella81 (04-06-2021)
#814
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I've had my Sport package (Over axle and valved exhaust) on for a couple weeks now. Coming from a 981 GTS with Soul's competition headers, the sound is good, but nowhere near as amazing as my old setup was.
One thing that really bothers me, is that if you accelerate with the valves closed at ~2000-2500RPM's, there's a lot of deep resonating droning that happens. It's really annoying sounding. With the valves open, it's basically fine. However, a similar thing happens with the valves open at around 4K RPM. I'm wondering if the Sport headers might alleviate this issue.
One thing that really bothers me, is that if you accelerate with the valves closed at ~2000-2500RPM's, there's a lot of deep resonating droning that happens. It's really annoying sounding. With the valves open, it's basically fine. However, a similar thing happens with the valves open at around 4K RPM. I'm wondering if the Sport headers might alleviate this issue.
#815
Burning Brakes
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I've had my Sport package (Over axle and valved exhaust) on for a couple weeks now. Coming from a 981 GTS with Soul's competition headers, the sound is good, but nowhere near as amazing as my old setup was.
One thing that really bothers me, is that if you accelerate with the valves closed at ~2000-2500RPM's, there's a lot of deep resonating droning that happens. It's really annoying sounding. With the valves open, it's basically fine. However, a similar thing happens with the valves open at around 4K RPM. I'm wondering if the Sport headers might alleviate this issue.
One thing that really bothers me, is that if you accelerate with the valves closed at ~2000-2500RPM's, there's a lot of deep resonating droning that happens. It's really annoying sounding. With the valves open, it's basically fine. However, a similar thing happens with the valves open at around 4K RPM. I'm wondering if the Sport headers might alleviate this issue.
#816
Rennlist Member
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I’m surprised that Soul hasn’t made heat shielding standard by now for the OAP, I think all others out there have, for a reason. So either get them coated or buy header wraps ASAP if you haven’t already.
But I absolutely love the sound on mine, doubt I will change anything beyond that, makes fantastic sound shifting.
But I absolutely love the sound on mine, doubt I will change anything beyond that, makes fantastic sound shifting.
Last edited by Porsche444; 04-06-2021 at 06:07 PM.
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brandobot (05-29-2023)
#817
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Because once you remove the GPF the temps on that area drop significantly...no need for it to increase cost.
Someone here even posted the temps data.
Now if you want to extract the most performance out of it, yes...I agree that containing heat on the exhaust is a must and some kind of coating would probably be a better solution.
#818
Instructor
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I've had my Sport package (Over axle and valved exhaust) on for a couple weeks now. Coming from a 981 GTS with Soul's competition headers, the sound is good, but nowhere near as amazing as my old setup was.
One thing that really bothers me, is that if you accelerate with the valves closed at ~2000-2500RPM's, there's a lot of deep resonating droning that happens. It's really annoying sounding. With the valves open, it's basically fine. However, a similar thing happens with the valves open at around 4K RPM. I'm wondering if the Sport headers might alleviate this issue.
One thing that really bothers me, is that if you accelerate with the valves closed at ~2000-2500RPM's, there's a lot of deep resonating droning that happens. It's really annoying sounding. With the valves open, it's basically fine. However, a similar thing happens with the valves open at around 4K RPM. I'm wondering if the Sport headers might alleviate this issue.
#819
Former Vendor
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Had a great conversation with John earlier today. Super knowledgable and was kind enough to sit on the phone and answer ALL my questions. Thank you!
Just ordered (via Momentum Worx) the Soul Race Exhaust (Resonated). Also got the slash cut (signature satin) tips from Soul.
Drone is not a big deal to me... even on a daily driver![burnout](https://rennlist.com/forums/graemlins/burnout.gif)
Just ordered (via Momentum Worx) the Soul Race Exhaust (Resonated). Also got the slash cut (signature satin) tips from Soul.
Drone is not a big deal to me... even on a daily driver
![burnout](https://rennlist.com/forums/graemlins/burnout.gif)
![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
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*LongFella81 (04-06-2021),
HooosierDaddy (04-07-2021)
#820
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I’m surprised that Soul hasn’t made heat shielding standard by now for the OAP, I think all others out there have, for a reason. So either get them coated or buy header wraps ASAP if you haven’t already.
But I absolutely love the sound on mine, doubt I will change anything beyond that, makes fantastic sound shifting.
But I absolutely love the sound on mine, doubt I will change anything beyond that, makes fantastic sound shifting.
What's your opinion on this? I assume you've chosen the design you have for a reason?
#821
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@Soul Performance
What's your opinion on this? I assume you've chosen the design you have for a reason?
What's your opinion on this? I assume you've chosen the design you have for a reason?
Best regards,
John Gaydos
__________________
SOUL PERFORMANCE PRODUCTS
Quality Exhaust Solutions, Fair Pricing, and Outstanding Service
John Gaydos- Owner, Performance Specialist
Cell - (484) 883-6197
johng@soulpp.com
Jon Wheel - Marketing Manager
jwheel@soulpp.com
![](https://rennlist.com/forums/signaturepics/sigpic191275_4.gif)
SOUL PERFORMANCE PRODUCTS
Quality Exhaust Solutions, Fair Pricing, and Outstanding Service
John Gaydos- Owner, Performance Specialist
Cell - (484) 883-6197
johng@soulpp.com
Jon Wheel - Marketing Manager
jwheel@soulpp.com
![](https://rennlist.com/forums/signaturepics/sigpic191275_4.gif)
Last edited by Soul Performance; 04-08-2021 at 07:46 AM.
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HooosierDaddy (04-09-2021)
#822
Burning Brakes
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Ok John - here's one for ya...
If, say, I wanted to get back to that GT3-ish sound that my 987.2 w/Race headers and PSE... like your Cayman R combo.... possible w/the Spyder/GT4? Amazingly quiet, totally stock sounding, w/valves closed. Screamer with the valves open.
If, say, I wanted to get back to that GT3-ish sound that my 987.2 w/Race headers and PSE... like your Cayman R combo.... possible w/the Spyder/GT4? Amazingly quiet, totally stock sounding, w/valves closed. Screamer with the valves open.
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StilettoPat (04-08-2021)
#823
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Yes... this please. What is the "prescription" required to achieve this behavior?
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daaa nope (04-07-2021)
#824
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Yes, I'm using the Valve Controller. I agree, stock there was a slight drone, but it was very slight (to me). Now it is exacerbated quite a bit, and the drone when closed at 2500 is deafening. It's a weird setup compared to when I just ran competition headers on the 981, that one was relatively tame at lower RPM's but much much louder at WOT and high RPM's. Instead, now it's just loud and drone-y at lower RPM's and then fairly quiet at high RPM's.
#825
Rennlist Member
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Of course, it's been covered in this thread a multitude of times haha, but in short...once the particulate filters are removed and that huge heat soak cooking the over axle pipes is gone the heat shielding is not necessary. We're not going to mandate people spend more money where they don't have to, regardless of varying opinions. When I can light a few hundred dollars on fire I'll let you know, but that's certainly not today and I'd imagine that's the same for most people haha. That said, there is no such thing as too much of a heat solution and we realize people can be more comfortable spending more to have it. We are more than happy to send our over axle pipes out to Jet Hot ceramic coating to have every millimeter of those pipes coated in either their 1300 degree or 2500 degree ceramic coating. For both our OAPs, their 1300 degree coating in Classic Polish costs $200, to do that same 1300degree coating in a different color brings it to $435, if you want their Ultra Extreme 2500 degree coating in any of their color options it costs $550.
Best regards,
John Gaydos
Best regards,
John Gaydos