Originally Posted by gloves
After market intakes tend to not flow consistently, and they tend to flow with turbulent air. This turbulent air is often not read properly by the air sensor in the intake. When the air cannot be calibrated, there is usually a loss in power. The stock intake is not a restriction on the Stage 1 and Stage 2 street tunes, and it will flow the more consistent over any aftermarket intake.
Wow... look at all those grammar and spelling mistakes. If that was a cut and paste... god save us all from the high school dropouts that Cobb hires.