I posted a while back that they put different pistons (ceramic coating and free floated pins if I recall) and some other little changes.
My wife drives it 95% of the time and only about 5 miles one way.
My dealer also ?? us on the last HH as others have asked him about the 04 running better than the 03, so I don't know.
I wonder if they gave it some more mid rpm power?
About the only way to tell would be a chassis dyno, I know Hypertech has one that H2 will work on.
Yell'r 04 Lux w/ air, sunroof,F&R brush bars
04 Chevy D/A CC SLT LB
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07 White H3 Adventure w/ some black stuff
04.5 GMC D/A CC SLT LB EFI LIVE tuned
98 ZR-2 Blazer
Ex H2&3 owner
My hiking boots and canoe paddle have more miles than most 'offroad' vehicles, over 350 in last year.
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