took my 2004 silverado truck to these shop.honestly over priced but took good care of my truck lifted with a fab tech suspension bought fuel wheels from them that took 4 days longer than expected,but love there work and most there honesty,,my truck is a 6.0 liter vortech when i inquired about the tune they were 100 percent honest and told me i would get the power i wanted ,when other shop in town told me i would gain 80hp with a tune,,,,they must of not notice i dont have a disel gas engine.........thanks again mikey