swathdiver
Full Access Member
Sounds like black bear autocal is the best out there. Does anyone know typcial power gains?
I do not have a before and after, just factory specs and after the tune. Stock, my truck was rated for 310 horsepower, SAE Net. After the tune, with a failing cat, it made 302 Rear Wheel Horsepower through the traps in the quarter mile. My tune is mild too. Justin would make changes and I'd ask him to dial it back some and he did. I reckon the tune unleashed about 25 rear wheel horsepower. To know for sure I'd need to know how much horsepower it takes to turn the 6L80. The differential takes about 15 hp if memory serves.