Aftermarket Performance - Hummer Forums by Elcova

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Aftermarket Performance

04-16-2008, 10:43 PM

peppers&eggs peppers&eggs is offline

Hummer Veteran

Join Date: Feb 2008

Location: PA

Posts: 34

Re: Aftermarket Performance

I don't have any headers on mine but I did put the Hypertec E-Con programmer, Air Raid intake & T-Body spacer and a Flowmaster exhaust. It made the truck a lot more snappier and gave it way more "get up and go". I really didn't notice any city MPG gains but I am getting between 15-16 on the highway. I don't really know what it was before, but I think that is pretty good for a truck that size. Hope this was helpful.

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