Originally Posted by cliverman
I'd like to see a dyno on a stock car followed by a dyno on a car with only the intake.
Intakes don't add a lot of power on the N55 as the OEM intakes flows pretty well. At the stock boost levels expect 0 hp from any intake. Only better sound. Now as you get boost up from 12-16psi there are small gains to be had. On the order of 5-10hp.