2003 h2 upgrades [Archive] - Hummer H2 Forum: H2 forums

2003 h2 upgrades

12-16-2003, 04:42 PM
I added the xtremeflow muffler and an air raid ar intake and I do

not really notice that big of a difference.the sound is really nice

though but i want something other then a supercharger to give

me some power I can feel. Any suggestions?

12-17-2003, 11:56 AM
Heads and cam or supercharger.