On an 03, 04, and 05 Silverados...</P>


Will</P>


- Dual Exhaust (cat back)</P>


- Flowmaster mufflers</P>


- Aftermarket CD player</P>


- Speakers</P>


void the warranty? what will, and what won't? does anyone have a lsit? </P>

Call General Motors at 1-866-952-4368 and they should be able to answer all your questions.

your tipical bolt ons wont void the waranty. read the faqs on aftermarket websites they sometimes tlk about waranty voiding

I Have A 06 Silverado If You Do Exhaust It Can Only Be Cat Back Or Will Void Warr. Pretty Much Any Engine Mods Will Mess With The warr. Because The Figure If You Added Horsepower Or Torque You Can Bust A Seal Or Something Also Becareful hat Kind Of Oil You Use I Changed To A Full Syn 5W 30 Mobil1 But Sometimes They Are Funny About Repairs If You Done Alot Of Upgrades

the only way that any part will void the warruntee is if that particular part caused the problem. Example....if you put a catback exhaust and the oil pump goes out the warruntee on the oil pump can not be blamed on the exhaust so warruntee still valid.