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Jeez I’m not sure WESTCOAST. I only installed one side so far. I’m doing the other one this afternoon. I can’t in to see without removing the wheel again. I will take measurements and advise on clearance.
Neil
The pipe won't move when the suspension is loaded vs. on a lift, but other clearances will be tighter (towards the back of the hub).
As for heat soak, Soul has commented previously that because there's no longer a GPF in the path which restricts flow (which is effectively a large heatsink) - there's little to no need for additional heat shielding.
Interesting how this get said repeatedly, yet my 981 without any GPF had heat shielding on the OAP from the factory... I would be surprised that Porsche would have added that heat shield to the 981 OAP if it wasn't 'really' needed.
And that was with a 3.4l quite probably making less heat then the 4.0l.
Thanks for that observation @Westcoast . In a conversation with Soul, and it may be written/mentioned above, they have a ceramic option for those concerned about any heat transfer. I too find the lack of a heat shield on the OAP concerning, especially if your 981 had it.
Hey guys! To comment on the clearance, we run the pipes as close to the inner fender as possible to ensure maximum clearance from the suspension. We expect these cars will be lowered and driven very hard. Taking that into consideration, we put as much clearance as possible between the moving suspension components and our pipes. As for heat shielding it is overkill with the GPF pipes deleted as it has been on every generation of Boxster/Cayman, and most every aftermarket exhaust system created for them over the years has eliminated this shielding as well. However, we know there are those who want overkill for peace of mind, and as mentioned before we are happy to accommodate that by sending the pipes out for Jet Hot's 2500degree Ceramic Coating at a cost of $450. This coats the pipes in their entirety, inside and out, and would be a superior heat solution to shielding. There is no such thing as too much heat reduction on exhaust...you don't have to do it, but if you want to we will do it
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
@Soul Performance John, you guys are so quick to answer any and all questions, and if you don’t have an answer you endeavor to find one. Thanks for sharing your experiences here sir.
I will post the wrap process, but it will be a while. Although my Soul OAPs have been delivered they won't be installed until late October (I'm in Jersey and the car is in Florida).
My question would be for any of these systems, both for clearance and heat soak, thanks for replying!
Regarding the bolded, I can't quite picture this is, do you have one or can explain further, I know with the stock system they keep it pretty tight to the inner wall.
Plus the OEM pipes are sort of oval, narrower across and taller on the Y axis. The Fabspeed OAP and apparently the Soul are perfectly round.
This picture gives a better idea of the tight clearance between the inner gender and the suspension components as John said.
Finished the install on the Soul OAP’s and just wanted to give an update. The spacing issue was a concern for me as well but after talking with John at Soul he assured me that was not an issue.
the product is very well built and the sound I am extremely happy with. At this point I don’t think any more modifications however that is a very personal choice. Soul has been great to deal with
and I am appreciative of that as this is my first experience changing any equipment on this type of vehicle.
I am happy that I removed the vacuum lines and I think the OAP was worth the money to upgrade.
I took the car out today and ran it for approximately 1.5 hours. I did run the majority of the time over 4000-5000 RPMs as I wanted to see if there was any issue with heat and the proximity to the
inner wheel well. Nothing to note here of any concern.
I was hesitant to do this install however I am happy I did. It was very simple
I would be surprised that Porsche would have added that heat shield to the 981 OAP if it wasn't 'really' needed.
And that was with a 3.4l quite probably making less heat then the 4.0l.
....And on the other hand Porsche never added the spark plug coil shielding to the 981 GT4s that's standard on the 911s and that is a documented issue. Simple fix to do but was never added at the OEM level for a car intended to be used at the track.
I agree that once you remove the OEM GPF canisters/pipes and replace it with a better flowing/bigger round tube with no restrictions the heat radiated in that area would be basically the same or less that the stock setup with shielding.
....And on the other hand Porsche never added the spark plug coil shielding to the 981 GT4s that's standard on the 911s and that is a documented issue. Simple fix to do but was never added at the OEM level for a car intended to be used at the track.
I agree that once you remove the OEM GPF canisters/pipes and replace it with a better flowing/bigger round tube with no restrictions the heat radiated in that area would be basically the same or less that the stock setup with shielding.
Porsche sold these people a street car...
Your comments about the heat from the OAP and any changes in this area is only a guess... unless you have performed some type of measurement or detailed analysis, please share if you have.
Your comments about the heat from the OAP and any changes in this area is only a guess... unless you have performed some type of measurement or detailed analysis, please share if you have.
Soul, please provide us with data. I am holding off on my order until I see data from the various aftermarket manufacturers. These cars are running hotter than 981 GT4 and it would be reassuring to see stock versus OAP temp data.
But generally, the sound is VERY nice, it's night and day. I guess I said on another thread that even before installing the new OAP, the sound had improved organically since new. With the OAP installed, the note is definitely more racing-like, and definitely louder as well. But with the valves closed, it's as quiet as OEM. I'm happy and most likely will stop here with my exhaust upgrade.
The only downside is that with the valves open all the time, there is some noticeable drone between 2-3k RPM, which was already present with the OEM OAP. But now it's louder. With the PSE it closes the valves on this RPM so you don't notice as much. It becomes really of personal taste.
this next video is with the OEM OAP. Hard to tell the difference in this crappy sound microphone.
08-21-2020, 03:41 PM
