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best chip for my buddys 08 gmc

3411 Views 2 Replies 3 Participants Last post by  Dpower, 
D
plug and play...no tuner. worried bout the warranty. ill probly install it for him but dont know much bout gm's being a dodge boy.
im sure i can do that though.

whats even avail for the newest version of the duramax..i have no idea

little help for us??
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