graysilv

Would adding headers and exhaust void the warranty on a new vette?

Glen e

it won't if they don't affect other parts that are GM, alter the engine operation that causes problems or the install does not change anything else.

SilversledC7

If the exhaust doesn't void the warranty, the custom engine tune required by the headers certainly might.

Waytofastvette2006

Swap it all back to stock ( including the tune ) and nobody should be the wiser!

I'm going to leave mine stock I think though. The last 3 had longtubes with no cats.

I got the npp exhaust so I'm hoping it will be loud enough for my tastes

sandu002

The NPP definitely takes care of loud throaty sound you seek. I read somewhere that if modify the stock tune and then switch it back for warranty reasons, GM knows it was changed. I maybe wrong on this, but as long as it is under warranty, I would not do anything to void the warranty.

W88fixer

Bingo, we have a winner! I’d bet that GM can tell if the ECM has been reflashed, removing it prior to a dealer visit won’t fool them. So, if you’ve had a tune and anything internal engine related is damaged, you just bought it. Don

Waytofastvette2006

I understand what your saying but what if you purchased a new GM computer would they be able to tell then ?

W88fixer

I certainly can’t answer that question, way beyond my knowledge of car electronics. Good luck finding the answer, maybe some guru here knows. Don