hey guys i have a 2009 gmc yukon denali i will be ordering a few parts from the states.. so will thoes fit and how much hp will they give "approx"

1) http://www.compperformancegroupstore...ct_Code=146102

2) http://www.compperformancegroupstore...uct_Code=54095

what pulley do u guys recomend? maybe this, http://www.slponline.com/view_product.asp?P=100225?

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whats a better long tube headers + y pipe with cats (dynatech or kooks)

 

You will be one of the first on this site to use that manifold, so you might be doing some testing for us!
That throttle body is cable operated and you should have drive-by-wire.

I like the Dynatechs, but you might also look at American Racing Headers and Stainless Works.

 

what do u mean by drive-by-wire? the options listed are cable driven and NW electronic.
what does the spacer kit do? , and whats the harness used for?

sorry for asking alot lol...

 

Drive by wire means that there is no physical connection between the throttle body and the gas pedal. You send commands to the computer and the computer opens the throttle blade using a servo on the throttle body. You would need the NW electronic option. I don't know what the "NW" means though.

I don't see the spacer kit or the harness you are referring to. I don't see them in the links.