Quote:
Originally Posted by Russell James
I've had headers on numerous cars and never had a warranty issue. Same with CAI's.
Couple of red flags to avoid - Don't show up for warranty work with an aftermarket calibration in the ECM. If you want to do tuning, research that what you are doing can be reversed. Power adders like superchargers... forget about the warranty. Same with mechanical mods like cams... warranty, done.
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These computers will show the tune even if you reverse the tune back to original. Hell, these computers will show if you swap back and forth between a tuned one and a stock one. Basically, if you tune your engine, GM will find out and your warranty is toast. As for CAIs and headers and whatnot, it is more a question of what your dealer says is ok. Some dealers say exhaust doesn't void the warranty, others say it does. I would contact the dealer and ask what they consider to be ok...