Has anyone found an exhaust solution they absolutely love?
#16
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The COBB AP wont work on the 718 GT4, at least that's the latest info from COBB...there are other ways around a CEL but if you have visual inspection then it becomes a bit more complicated.
#17
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On the OAP, if they are designed with a single tube going into a Y split (like Fabspeed, Akra and Soul) they should all sound the same....go with the best construction quality and/or price.
Now...if they add resonators or move the cats there then sound will definitely change.
#19
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JCR-Porsche (04-28-2021)
#20
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I have just this mod for now, still OEM muffler. It sounds much better than OEM, louder for sure. But as there is no mixing of gas in the muffler, you amplify the sound of 2x 3 cylinders. So I am strongly considering a SOUL or Fabspeed rear valved muffler to address that.
#21
Burning Brakes
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Yup that's what I read as well. I spoke with cobb customer service a month or two back..I will do a spacer
#22
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Check out our new video showcasing the sound and power of our 718 GT4 System!
Featuring our Valvetronic Exhaust, Sport Headers, and GPF Delete.
Featuring our Valvetronic Exhaust, Sport Headers, and GPF Delete.
#23
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I thought about doing headers, exhaust and OAP, so I figured I would start with the easiest item, OAP, and I went with Soul, $1795, and I think it's awesome. Sounds sooooo much better, just love it, so now now not sure if I need the rest. I think I would of do heaters and exhaust if I need more power, took car to Streets of Willow Springs and car sounded and felt phenomenal.
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#24
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I thought about doing headers, exhaust and OAP, so I figured I would start with the easiest item, OAP, and I went with Soul, $1795, and I think it's awesome. Sounds sooooo much better, just love it, so now now not sure if I need the rest. I think I would of do heaters and exhaust if I need more power, took car to Streets of Willow Springs and car sounded and felt phenomenal.
Soul catless headers in white lightneing coats by Swaintech with o2 spacers (which to be honest was useless to add spacers as CEL will appear no matter what even after reflashing)
power bump , sound was X2 and weight was lowered overall and power when crossing the 5k every time you would never miss the stock setup + it has ZERO DRONE and not loud to unless you throttle pass the 4k i would think the oem catback did hold and bottle necking it. But will see soon by how much.
Next week in for the valved x Exhaust by soul + their valves bypass controller to finish my final setup.
Soul did a fantastic job with the design of headers and the coating did make a big difference since i track 80% of the time of the cars life. The sound is near obssessed garage full setup but lower volume and has high pitch in comparison (which will be corrected soon). I think it will be a perfect after the catback.
![](https://cimg9.ibsrv.net/gimg/rennlist.com-vbulletin/884x1624/214fb1f7_b449_4f0b_abbd_e56434a86d73_7bc92f735d2a9602f532fd5009d0d93e7ba28498.jpeg)
![](https://cimg2.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1124/4eaabe5f_97cd_4a01_87ec_32cee14847da_2f902b4a2e69575035caf7dfcfb0fbd7a737b678.jpeg)
![](https://cimg0.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1124/117fc76f_33e1_4996_975f_1a0db14561b1_07feac1a43cc0b140153611edd592162db233369.jpeg)
PS, the akra in the pic wasn’t installed fully which some people might notice the vacume plug and the bracket nut isn’t installed which it is but not on the time i pictured it while installation
Last edited by alwaysdriving; 01-20-2021 at 03:57 PM.
#25
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Soul OAP and valve controller. Stock exhaust does get louder after a few thousand miles . Installed valve controller first...when open, kind of drone-y. But with oap, get more throaty sound/better tone and burbles/farts - can actually hear engine when you downshift and rev match (not as burbly as 981, but definitely more fun to listen to). Not cheap but worth it for what I was looking for. No need for me to go full exhaust replacement.
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Soul Performance (11-18-2021)
#26
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Dundon. nuff said.
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#27
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I have a Soul race exhaust on order and thinking of getting either catted or non-catted Cargraphic headers.
#28
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#29
#30