Originally Posted by KERMIT

Has anyone measured the real differences? Such as the reduction in pressure drop, decrease in air temperature, increase in mass flow reading, etc? This would be far more valuable than worrying about the end metric which is horsepower.

Everyone jumps to certain conclusions based on company reputation and some dynojet results from a shop in Kentucky.. If the automotive engineers of the world did this... They would be fired on the spot. If the aftermarket cared as much as OEM's about the true metrics behind a product design, we would have much better aftermarket parts.