H3 Engine Performance Up-grades - Hummer Forums by Elcova

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H3 Engine Performance Up-grades

09-21-2007, 07:18 PM

Jim Klee

Elcova Newbie

Join Date: Sep 2007

Location: Portland, OR

Posts: 3

H3 Engine Performance Up-grades

I just purchased a 06 H3 and love the rig, but like most wanted more power. I just installed a K&N cold air intake (dyno claims 18.7 HP) I also put a flowmaster muffler and removed the stock exhaust resinator with a straight pipe. I noticed a nice increase in power, but wanted more.

I am interested in the: JET Performance Chip. The stage 1 dyno claims 15HP, the stage 2 I have not seen any dyno claims. Has anyone done the JET chip?

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