Hello all. Just wanted to say thanks for this forum. I 've owned my 06 6.0 H2 for the about 1 year now and have really enjoyed the power and comfort for such a large vehicle. My H2 has an dealer installed Magna Charger supercharger that is fully 100k miles warrantied. I also have PRO-Street 70 GTO that I occassionally take and have dyno tuned. I would like to put the Hummer on the dyno but the operators says it's not possible with the Hummer being AWD. Anyone else with this dealer installed option and what would you guess BHP to be? The dealer has quoted "almost 600 @ 6300 rpm" BUT there is no documentation to support that.
Thanks again for such a wonderful and informative site.

 

Very COOL!!!

 

Check with the performance shops in your area. I live in CT and was told that there are places that have a AWD dyno. Call them all and then ask if they know of any. After I put the SC on mine I am going to do the same.