2008 Sierra Denali tuner

[BrandenG1]

I'm thinking about putting a tuner on my 08 Sierra Denali 6.2L V8. I don't really know much about them. I know I can get more HP and better fuel economy out of it. It anyone can give me some help I'd appericate it. Does anyone have a tuner on their Denali?

[kyle.crow.902]

I'm also curious, I haven't found much on the Internet or other forums.

 

 

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