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Alaskan SS · 12-10-2011, 10:40 PM

OK. I'll check with Hypertech. Last question... If I have a certified dealer to the work, would it void my warranty?

12-10-2011, 10:40 PM	#5
Alaskan SS Registered User Join Date: Feb 2011 Location: Anchorage, AK Posts: 24	Re: 07 GMC Sierra Towing Question OK. I'll check with Hypertech. Last question... If I have a certified dealer to the work, would it void my warranty?