HP Tuners cracked the engine control module for GM's LT6 and LT7 V-8s, and then a modded ZR1 registered 1180 horsepower at the wheels.
Nearly 1,200 wheel horsepower is a wild improvement over the crank-rated 1,064 horsepower advertised by the Chevrolet ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results