C8 Exhaust upgrade
08-13-2023, 09:27 AM
#41
Safety Car
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; 08-13-2023 at 09:34 AM.
08-13-2023, 03:01 PM
#42
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.
08-13-2023, 03:56 PM
#44
Safety Car
08-13-2023, 04:47 PM
#45
Burning Brakes
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
08-13-2023, 04:50 PM
#46
Le Mans Master
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.
The following users liked this post:
23dream (08-13-2023)
08-13-2023, 06:14 PM
#47
Racer
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
08-13-2023, 06:36 PM
#48
Safety Car
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; 08-13-2023 at 06:43 PM.
The following users liked this post:
bhvrdr (08-13-2023)
08-13-2023, 08:39 PM
#50
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; 08-13-2023 at 08:49 PM.
08-13-2023, 08:46 PM
#51
Le Mans Master
Plenty of aftermarket performance shops around though!
The following users liked this post:
23dream (08-13-2023)
08-14-2023, 01:02 AM
#52
Melting Slicks
Member Since: Apr 2021
Location: Simi Valley, CA
Posts: 2,020
Received 1,557 Likes
on
850 Posts
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
The following 4 users liked this post by MarkMeHopeful:
08-14-2023, 07:40 AM
#53
Burning Brakes
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
08-14-2023, 09:13 AM
#54
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.
The following 3 users liked this post by combatninja:
08-14-2023, 10:12 AM
#55
Le Mans Master
Member Since: Mar 2001
Location: Omaha
Posts: 6,614
Received 2,303 Likes
on
1,202 Posts
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).
08-14-2023, 10:28 AM
#56
Melting Slicks
Member Since: Apr 2021
Location: Simi Valley, CA
Posts: 2,020
Received 1,557 Likes
on
850 Posts
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.
08-14-2023, 11:04 AM
#57
Le Mans Master
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).
The following users liked this post:
EvanZR1 (08-14-2023)