Ive also got an 03 and its on 38's. I put a volant intake system on it and it increased a whoppin 1mpg. The performance programmer is on the way and its supposed to help a little too so Ill let you know how that works on my truck when im done installing it. My total right now is 9.9 so youre doin a little better than me!
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03 White H2 with Banks exhaust, Volant intake, 4\" Rancho lift, 18\" black Rockstars, 37\" ProComp Xterrains, Roof Rack and lights and a lot of turning heads!
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