I was asked to look at a 04 GMC 4x4 8.1 with an allison 5 speed. He said it felt a little flat when he jumped on it. I plugged in the scanner and told him to go for a ride. Here are the results. WOW
Mods - K&N kit and A cat back system.
I was asked to look at a 04 GMC 4x4 8.1 with an allison 5 speed. He said it felt a little flat when he jumped on it. I plugged in the scanner and told him to go for a ride. Here are the results. WOW
Mods - K&N kit and A cat back system.
2002 Chevy ECSB, 6.0 - 4L80, Comp Cam 226/270 .520/.524 Lift 115 Lobe - Magnaflow exhaust -Free flow cats K/N Kit - Electric fans - 3.73
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