Hypermax one 2008 chevy 1500 5.3 gas
Reviewed By Timothy A (Johnson City, TN) Reviewed for a
—4/9/2008 9:12 PM
It was fairly easy to install. The only thing my customer does not like is that fact that everytime he was to change something in the tuning he has to take a lot of fuses out and unplug onstar it a pain when your in a hurry. Over all it helped the way the tranny shifts which was the biggest reason for buying it. As far as power goes it may have helped some but it was not as much as we had hoped.