Off the wall question?
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Senior User
Joined: Sep 2007
Posts: 224
Likes: 0
From: Linton, IN
Off the wall question?
Ok, my friend has a new 2008 gmc sierra 5.3. He wants to know what the best tuner is for it. He nows I have a tuner for my 7.3 so he asked me if I would investigate. So I know this is DEFINETLY not a gm forum but does anyone on here have any suggestions on what tuner gets the 5.3 gasser the most power? I looked on some gm forums but im embarrassed to get a user name and ask. LOL
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
Anything he gets is only going to add 15-25hp. Gassers don't benefit from tuners like diesels do.
But no, I don't know what the best would be for his truck. Probably Superchips or something like that.
But no, I don't know what the best would be for his truck. Probably Superchips or something like that.
Elder User
Joined: Feb 2007
Posts: 928
Likes: 1
lol Well Bully Dog makes the power pup for it. Superchip makes the Cortex and the Flashpac. Hypertech, possibly Edge, and Quadzilla but my dealer books are in my breifcase in my truck. Ill let you know tomarrow the horsepower numbers.
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
I suggest he go on the Chebby site and ask for himself! 
The best gains he could get is if he had his truck on a flatbed trailer and was being towed by a Powerstroke lol
The best gains he could get is if he had his truck on a flatbed trailer and was being towed by a Powerstroke lol
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Post Fiend
Joined: Feb 2008
Posts: 10,977
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From: Lancaster, Pa.
Now thats harsh travis, LOL, but true. I got to give you alot of apples to ask that on here. I don't know alot about gasser chips but your friend got to go to a cheby forum to get real input on what works for them. Or somebody will chime in that has a cheby in the back of their driveway,lol.
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