headers wont necessarily void the motor warranty if you have a good dealer, but everything behind the header would be voided guarenteed CATS, exhaust assuming any of that is kept stock. But you start doing a lot of stuff, you can start to throw the warranty out the door. And with the LS1 long tube headers threw a code just about everytime. Guys either deleted the sensor or deleted the code.
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2010 1SS/RS Black, CGM stripes, polished Rims, Tinted windows, Hurst shifter
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