C8 Exhaust upgrade
Safety Car
Joined: Jul 2019
Posts: 4,079
Likes: 2,413
From: Florida
Borla told me 8 to 10hp was what they regularly saw for gsins.
with wierd outliers up to 20.
They posted the same here...
https://www.corvetteforum.com/forums...post1603608557
Either way you're probably not spending the 4k for the 9hp.
They told me via email their exhaust weighed 56lbs. I measured it at 60.6lbs. It is exactly 14lbs lighter than the NPP
with wierd outliers up to 20.
They posted the same here...
https://www.corvetteforum.com/forums...post1603608557
Either way you're probably not spending the 4k for the 9hp.
They told me via email their exhaust weighed 56lbs. I measured it at 60.6lbs. It is exactly 14lbs lighter than the NPP
Last edited by bhvrdr; Aug 13, 2023 at 09:34 AM.
Intermediate
Joined: Mar 2023
Posts: 40
Likes: 56
My ears (and my wife's) tell me that my GM Borla added more volume than "just a bit" but I do also have headers + cats. Regardless, I had the dealer install it to retain zero warranty concerns at least in that aspect. I'm very happy with the system; paid ~$4,700 out the door including install & tax.
Drifting
Joined: Nov 2019
Posts: 1,675
Likes: 872
From: Indian land SC
I just drove my buddies home with the zmode and it certainly sounded way better than I thought it would....but definitely needs a bit more sound....I'm wondering if the type s is the best option of the 4 ( stock npp, gm borla, type s, atak)....worried that the atak one would be too loud and the gm borla too quiet...but it definitely needs a bit more now after driving it
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
I paid $434. The cheapest around was $250, but I wanted to stick with my regular dealership. I ordered through the Chevy Accessories website and selected dealer installation during that process.
Pro
Joined: Apr 2017
Posts: 514
Likes: 138
From: Pocatello, ID
borla
I just drove my buddies home with the zmode and it certainly sounded way better than I thought it would....but definitely needs a bit more sound....I'm wondering if the type s is the best option of the 4 ( stock npp, gm borla, type s, atak)....worried that the atak one would be too loud and the gm borla too quiet...but it definitely needs a bit more now after driving it
Safety Car
Joined: Jul 2019
Posts: 4,079
Likes: 2,413
From: Florida
I just drove my buddies home with the zmode and it certainly sounded way better than I thought it would....but definitely needs a bit more sound....I'm wondering if the type s is the best option of the 4 ( stock npp, gm borla, type s, atak)....worried that the atak one would be too loud and the gm borla too quiet...but it definitely needs a bit more now after driving it
It sounds like a charger. Very deep and farty.
Make sure you listen to it before you buy.
Last edited by bhvrdr; Aug 13, 2023 at 06:43 PM.
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Drifting
Joined: Nov 2019
Posts: 1,675
Likes: 872
From: Indian land SC
Pretty good comparison....now i need to find someone local that has the tyoe s
Intermediate
Joined: Mar 2023
Posts: 40
Likes: 56
I’m looking at buying the ATAK. Has anyone bought the non-GM accessory exhaust from borla and had it installed at a dealership? Will they install those systems or do they refuse?
Last edited by 23dream; Aug 13, 2023 at 08:49 PM.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
Plenty of aftermarket performance shops around though!
Melting Slicks
Joined: Apr 2021
Posts: 2,752
Likes: 2,323
From: Simi Valley, CA
2022 C8 of the Year Finalist - Modified
I just drove my buddies home with the zmode and it certainly sounded way better than I thought it would....but definitely needs a bit more sound....I'm wondering if the type s is the best option of the 4 ( stock npp, gm borla, type s, atak)....worried that the atak one would be too loud and the gm borla too quiet...but it definitely needs a bit more now after driving it
Drifting
Joined: Nov 2019
Posts: 1,675
Likes: 872
From: Indian land SC
I can tell you from personal experience that I think the S-type is the sweetest. I have heard all 4, and have the S-Type installed on my C8. The ATAK is definitely the loudest but I think the S-type has the best quality sound and it is still plenty loud. Just my own opinion.
How much louder was it vs stock when driving? It's definitely a different experience with the engine behind and the Sounds are much different.
Did you do a mild to wild switch or just use the zmode thing
Melting Slicks
Joined: Aug 2022
Posts: 2,784
Likes: 3,566
I think a lot of guys are making their cars way too loud partially because with the engine out behind you, you're simply not hearing things like you used to when the headers were 24" from your ears in Corvettes of yore. They're craving that cabin noise, and to get it, the sound out of the rear of the car is antisocial. The stock NPP is decent and the high quality resonated systems are fine but these systems with no mufflers are ridiculous. Real quick way to become 'that guy' in your neighborhood.
Le Mans Master
Joined: Mar 2001
Posts: 8,423
Likes: 3,912
From: Omaha
2020 Corvette of the Year Finalist (performance mods)
C4 of Year Winner (performance mods) 2019
My question is which has the quieter Tour mode: valves Corsa or Borla S-type, I’m betting Corsa. Honestly as long as either is as quiet as stock NPP in Track, the wife will be ok with it (i.e. won’t notice).
Melting Slicks
Joined: Apr 2021
Posts: 2,752
Likes: 2,323
From: Simi Valley, CA
2022 C8 of the Year Finalist - Modified
It is a lot louder than stock when driving, although obviously not as loud as heard from outside the car. There is no mild to wild switch for the C8. I usually drive in MyMode with the exhaust set to Track. Sometimes I use Zmode with Engine/Shifting also set to track just because it downshifts at higher RPM and makes more burbles and pops.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
That’s what my C4 ZR-1 is for: long tubes , no cats and straight through B&B mufflers and upgraded cams.
My question is which has the quieter Tour mode: valves Corsa or Borla S-type, I’m betting Corsa. Honestly as long as either is as quiet as stock NPP in Track, the wife will be ok with it (i.e. won’t notice).
My question is which has the quieter Tour mode: valves Corsa or Borla S-type, I’m betting Corsa. Honestly as long as either is as quiet as stock NPP in Track, the wife will be ok with it (i.e. won’t notice).
Intermediate
Joined: Nov 2024
Posts: 29
Likes: 3
I can tell you from personal experience that I think the S-type is the sweetest. I have heard all 4, and have the S-Type installed on my C8. The ATAK is definitely the loudest but I think the S-type has the best quality sound and it is still plenty loud. Just my own opinion.
Melting Slicks
Joined: Apr 2021
Posts: 2,752
Likes: 2,323
From: Simi Valley, CA
2022 C8 of the Year Finalist - Modified
Nope, no drone at any speed, in any gear, even when it switches to V4. I don't think any exhaust on a C8 sounds as good as a good exhaust on a Mustang GT, but the Borla S-type does sound very sweet.