SOUL | 718 GT4/Spyder Exhaust Development
#1051
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I lived in Ft Wayne 65 yrs, (went to Huntertown HS), but currently reside in SE Florida. Thanks for the offer just the same.
#1053
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Several days and 600'ish miles later update:
Volume level increasing and I swear the drone I had once notice is dissipating. Is it that I'm getting use to it or that as the exhaust's packing is settling in, its changing as originally perceived? I believe it is changing.
Side note, I know I mentioned it before - I LOVE the little growl, no popping burble (best I can describe it as) on in gear deceleration around 2500 rpm till depressing the clutch.![rockon](https://rennlist.com/forums/graemlins/rockon.gif)
Went out to grab sound clips, but my normal spot had road crews working today.
Too header or not to header is the question for me.
Volume level increasing and I swear the drone I had once notice is dissipating. Is it that I'm getting use to it or that as the exhaust's packing is settling in, its changing as originally perceived? I believe it is changing.
Side note, I know I mentioned it before - I LOVE the little growl, no popping burble (best I can describe it as) on in gear deceleration around 2500 rpm till depressing the clutch.
![rockon](https://rennlist.com/forums/graemlins/rockon.gif)
Went out to grab sound clips, but my normal spot had road crews working today.
Too header or not to header is the question for me.
Last edited by HooosierDaddy; 06-01-2021 at 07:04 PM.
The following users liked this post:
Soul Performance (06-02-2021)
#1054
RL Community Team
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Several days and 600'ish miles later update:
Volume level increasing and I swear the drone I had once notice is dissipating. Is it that I'm getting use to it or that as the exhaust's packing is settling in, its changing as originally perceived? I believe it is changing.
Side note, I know I mentioned it before - I LOVE the little growl, no popping burble (best I can describe it as) on in gear deceleration around 2500 rpm till depressing the clutch.![rockon](https://rennlist.com/forums/graemlins/rockon.gif)
Went out to grab sound clips, but my normal spot had road crews working today.
Too header or not to header is the question for me.
Volume level increasing and I swear the drone I had once notice is dissipating. Is it that I'm getting use to it or that as the exhaust's packing is settling in, its changing as originally perceived? I believe it is changing.
Side note, I know I mentioned it before - I LOVE the little growl, no popping burble (best I can describe it as) on in gear deceleration around 2500 rpm till depressing the clutch.
![rockon](https://rennlist.com/forums/graemlins/rockon.gif)
Went out to grab sound clips, but my normal spot had road crews working today.
Too header or not to header is the question for me.
#1055
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Several days and 600'ish miles later update:
Volume level increasing and I swear the drone I had once notice is dissipating. Is it that I'm getting use to it or that as the exhaust's packing is settling in, its changing as originally perceived? I believe it is changing.
Side note, I know I mentioned it before - I LOVE the little growl, no popping burble (best I can describe it as) on in gear deceleration around 2500 rpm till depressing the clutch.![rockon](https://rennlist.com/forums/graemlins/rockon.gif)
Went out to grab sound clips, but my normal spot had road crews working today.
Too header or not to header is the question for me.
Volume level increasing and I swear the drone I had once notice is dissipating. Is it that I'm getting use to it or that as the exhaust's packing is settling in, its changing as originally perceived? I believe it is changing.
Side note, I know I mentioned it before - I LOVE the little growl, no popping burble (best I can describe it as) on in gear deceleration around 2500 rpm till depressing the clutch.
![rockon](https://rennlist.com/forums/graemlins/rockon.gif)
Went out to grab sound clips, but my normal spot had road crews working today.
Too header or not to header is the question for me.
The following users liked this post:
HooosierDaddy (06-04-2021)
#1056
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Ok, back to stock exhaust now, with the Soul valve controller still in place. While better to my "sensitive" ears, there is still an unpleasant drone somewhere in the high 2k-3k range. Not as loud now, but it's still there. Tried opening valves full time, and back to stock valve function several times on the way home in heavy around town traffic, so couldn't watch the tach like I would have. I think I know why Porsche chose to open/close/open the exhaust valves. It's the annoying in-cabin sounds when valves forced open in the normal valves closed rpm range. For me, at only 500 mi, all stock sounds best to my ears. Still waiting for the Soul valved exhaust to be built. Will decide if I want to try it when that time comes in several wks. I would like to have a higher pitched sound more reminiscent of my 981 Cayman S, but can't tolerate much in-cabin resonance. Who knows, maybe the perfect exhaust for me is the Soul valved exhaust operating the the stock open/close/open configuration!
The following users liked this post:
HooosierDaddy (06-04-2021)
#1057
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Ok, back to stock exhaust now, with the Soul valve controller still in place. While better to my "sensitive" ears, there is still an unpleasant drone somewhere in the high 2k-3k range. Not as loud now, but it's still there. Tried opening valves full time, and back to stock valve function several times on the way home in heavy around town traffic, so couldn't watch the tach like I would have. I think I know why Porsche chose to open/close/open the exhaust valves. It's the annoying in-cabin sounds when valves forced open in the normal valves closed rpm range. For me, at only 500 mi, all stock sounds best to my ears. Still waiting for the Soul valved exhaust to be built. Will decide if I want to try it when that time comes in several wks. I would like to have a higher pitched sound more reminiscent of my 981 Cayman S, but can't tolerate much in-cabin resonance. Who knows, maybe the perfect exhaust for me is the Soul valved exhaust operating the the stock open/close/open configuration!
What tips did you buy?
#1058
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Looking forward to your review. I’ve asked a few times in this thread if anyone is running just the rear section, and it appears that you might be the first (to report anyway). What’s the timeline? It does seem like Porsche was strategic with the valve operation, above and beyond the sound regulations.
What tips did you buy?
What tips did you buy?
Last edited by Goodwood; 06-02-2021 at 05:45 AM.
#1059
#1060
The following 2 users liked this post by HooosierDaddy:
CliffBoothWannabe (06-04-2021),
Goodwood (06-04-2021)
#1061
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
22 days & counting till arrival.
#1062
Rennlist Member
Join Date: Jul 2001
Location: Marineland FL
Posts: 12,532
Likes: 0
Received 3,456 Likes
on
2,360 Posts
The following users liked this post:
Soul Performance (06-07-2021)
#1063
Burning Brakes
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Beautiful weekend in the northeast for some driving..I was just out with my comp headers/race combo and the sound is explosive especially starting at 5k. Man it's awesome. That is all!
The following 3 users liked this post by MEM82:
#1064
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
If anyone has our exhaust components in the queue feel free to email me and I'll get some shots of them being fabricated for you! mike@soulpp.com
-Mike
__________________
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)
The following users liked this post:
Knutsm01 (06-07-2021)
#1065
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Finally got to Road Atlanta at the weekend and the resonated race exhaust sounded fantastic. Couldn't sneak below the 95db limit for 'quiet hour' on Sunday so moved up to group 3 instead
(for those interested, 'quiet hour' is required because of the local churches, however it just has the effect of all the loud cars driving to the gas station to refill - which involves driving right past the church!!)
Definitely getting used to this exhaust. I think my driving style has changed too. I used to have to try and avoid the drone and now I find myself driving naturally outside of it most of the time. I think if you drive it like a GT4 then the race exhaust makes sense, if you drive it like a regular car then the GT4 makes lots of strange, unsettling noises anyway and the race exhaust turns them all up to 11! You definitely have to turn off the auto stop-start though to avoid the 3-cyl switching, which creates a weird harmonic that's a bit odd for anyone that isn't aware of Porsche's attempt at fuel saving.
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Definitely getting used to this exhaust. I think my driving style has changed too. I used to have to try and avoid the drone and now I find myself driving naturally outside of it most of the time. I think if you drive it like a GT4 then the race exhaust makes sense, if you drive it like a regular car then the GT4 makes lots of strange, unsettling noises anyway and the race exhaust turns them all up to 11! You definitely have to turn off the auto stop-start though to avoid the 3-cyl switching, which creates a weird harmonic that's a bit odd for anyone that isn't aware of Porsche's attempt at fuel saving.
The following users liked this post:
Soul Performance (06-08-2021)