C8 Exhaust upgrade
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
We don't have anything in writing from GM, but fortunately, a Cat-Back exhaust system cannot void your factory warranty and their approval is not required. The Magnuson-Moss Warranty Act protects you from any dealer claiming that an aftermarket system voids your warranty. The dealer would need to prove that our system caused a problem before the warranty can be denied. At worst a dealer may give you a hard time, but you are protected.
While you don't necessarily need to have a dealer install our system, you will need to go a Chevrolet dealer after install in order to have your valve actuators recalibrated according to GM Document ID 5406413.
While you don't necessarily need to have a dealer install our system, you will need to go a Chevrolet dealer after install in order to have your valve actuators recalibrated according to GM Document ID 5406413.
Thread Starter
Racer
Joined: Apr 2010
Posts: 379
Likes: 2
From: Naples FL
...and for the DIYers out there, this $119 scan tool does the trick too!
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
Safety Car
Joined: Jul 2019
Posts: 4,079
Likes: 2,413
From: Florida
We don't have anything in writing from GM, but fortunately, a Cat-Back exhaust system cannot void your factory warranty and their approval is not required. The Magnuson-Moss Warranty Act protects you from any dealer claiming that an aftermarket system voids your warranty. The dealer would need to prove that our system caused a problem before the warranty can be denied. At worst a dealer may give you a hard time, but you are protected.
While you don't necessarily need to have a dealer install our system, you will need to go a Chevrolet dealer after install in order to have your valve actuators recalibrated according to GM Document ID 5406413.
While you don't necessarily need to have a dealer install our system, you will need to go a Chevrolet dealer after install in order to have your valve actuators recalibrated according to GM Document ID 5406413.
In the case of performance parts that claim to change the performance of other OEM parts this is different.
As you said, the dealership should reasonably be able to convince a judge that your aftermarket part contributed to the part failure or "reduced it's lifespan". The wording in the actual act. This "shouldn't" happen with a Borla catback imo. But that's just my opinion.
In reality what can happen if the manufacturer perceives your aftermarket performance part contributed to the part failure,?
1. they will deny your warranty claim.
2. At this point you can wave a largely irrelevant MM Act printout at them but chances are they are already extremely familiar with the MM Act.
3. Next you can appeal to them. Contact your ftc, ctc etc.
4. Next you can have a hundred dollar lawyer letter written.
5. Next you take them to court. You had better come with your own engineers that are more believable to the judge than theirs are.
This is going to cost you A LOT of money btw.
And if you lose.... which you may very well do if your own performance parts advertising claims to alter OEM engine performance and if their engineers appear credible....then you will be paying for the repair and several thousand in legal and expert witness fees.
........
All that said the Borla exhaust is the safest to go with imo
They are very careful to make ZERO written claims of horsepower increases in their advertising. It's no wonder why that is. Smart decision.
They also have a GM approved version which is likely arguably quite similar in design as the S and Atak.
There really "shouldn't" be an issue with a Borla catback but no aftermarket PERFORMANCE manufacturer that doesn't have written approval from the car manufacturer can say their product will not impact a warranty claim.
Even GM says it may....in writing...
That said, since Borla themselves did say in writing that their product will not cause a warranty claim issue you are now covered.
This is quite frankly awesome of them.
If you do have a claim issue I would ask Borla to step in as they claim their product will not encounter one.
If anything it's a great reason to choose them.
Pro
Joined: Jul 2021
Posts: 694
Likes: 617
From: Crosslake, MN
It's pretty simple and says it right in your owners manual. Any modifications you risk warranty claims. If you are installing an actual GM accessory you are fine. Odds are it's not going to be a problem but if it is good luck fighting a multi billion dollar company. They will laugh at you.
Drifting
Joined: Nov 2019
Posts: 1,675
Likes: 872
From: Indian land SC
It's pretty simple and says it right in your owners manual. Any modifications you risk warranty claims. If you are installing an actual GM accessory you are fine. Odds are it's not going to be a problem but if it is good luck fighting a multi billion dollar company. They will laugh at you.
Not sure..
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
Drifting
Joined: Nov 2019
Posts: 1,675
Likes: 872
From: Indian land SC
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Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
Drifting
Joined: Nov 2019
Posts: 1,675
Likes: 872
From: Indian land SC
Thanks I'll shoot you a note and if I can swing by on Tuesday am would be great to connect- im super torn betweem the borla gm and the stype...kinda feel the atak is going to be just too much
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
Please let me know by Monday evening so I'll know if I should drive the C8 to work or not. 👍
Drifting
Joined: Nov 2019
Posts: 1,675
Likes: 872
From: Indian land SC
Instructor
Joined: Apr 2021
Posts: 153
Likes: 96
From: Richfield, MN
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
Corsa claims +18whp and -16 lbs., but no clue if their +18 is an average or cherry picking the hero pull.
Burning Brakes
Joined: Feb 2000
Posts: 837
Likes: 184
From: North Wales PA
Borla privately told me that +12whp is their real-world average gains seen during their R&D testing (GM & S-Type are the same in this regard). They saw some outlier hero runs of 20+ whp gains. Weight savings is -15 lbs (same as S-Type).
Corsa claims +18whp and -16 lbs., but no clue if their +18 is an average or cherry picking the hero pull.
Corsa claims +18whp and -16 lbs., but no clue if their +18 is an average or cherry picking the hero pull.
Instructor
Joined: Apr 2021
Posts: 153
Likes: 96
From: Richfield, MN
Borla privately told me that +12whp is their real-world average gains seen during their R&D testing (GM & S-Type are the same in this regard). They saw some outlier hero runs of 20+ whp gains. Weight savings is -15 lbs (same as S-Type).
Corsa claims +18whp and -16 lbs., but no clue if their +18 is an average or cherry picking the hero pull.
Corsa claims +18whp and -16 lbs., but no clue if their +18 is an average or cherry picking the hero pull.