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Old 11-04-2008, 08:11 PM   #8
Hoss
 
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Drives: 2004GMC Extended Cab
Join Date: Oct 2008
Location: North Texas
Posts: 623
Please tell me who ADI is?

Do you think the shorty headers & the cat back system will help and would they be worth the money?

Put it another way is any of this going to help performance much?

When you are talking about a good tuner helping you out on performance, are you folks talking about a computer geek who knows these GM engines and works on computer cards?

I sure could use some help on this. I want to keep the 3 year/ 36000 mile warranty.

Thanks,

Hoss
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