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They took a C-5 (non-Z06) and added an air intake system with a k&n. They dynoed a 21 rwhp gain with the screen in the mass air flow sensor intact just from the intake alone. I am very skeptical about their results. They then did a computer reprogram and netted another 10 hp at the rear wheels. I think there could have been something wrong with their dyno or they are corrupt. Anyone else see it??