The Chip that keeps giving.
I have a Hummer H3 not Much at first the more I drove it started changing The tone Change I have Delta 50 flow master three inch in and out. The sound is Great. The shifting well improved I have the four speed automatic. Won't shift in four gear tell the temp goes to Normal Every time startup it get better
New life for an older truck
I bought a new rv last year, and was unhappy with the trucks pulling performance....so i did some research,and found a tuner would do the job....i did not need all the bells and whistles..just something to change the timing and shift points....this unit was just the ticket....and it was on sale.... cant beat that....have set it to tow mode and it made a big difference....i live in new england (lots of hills)..and no more overreving to pull them...my truck works within its power band .