well theirs idles at the same rpms as mine, with the same mod, all i have is an intake..... thing is, there are about 3 or 4 other people other than me trying to find the solution to this..... its not a problem, its just annoying, and its weird because other than that the car drives great so I shouldnt be complaining, but it gets a lil annoying when you sit at a stop light and you feel the car shaking know what im sayin?