I just reinstalled my intake just about 5 minutes ago after taking it out so I can re tighten it. Now the car starts but shakes a little harder then before when it idles. There's no cel and everything seems to be normal other then the shaking. Idk what's wrong I think it may be fine but jw. Any help? Or am I just being parinoid.

 

the throttle cables are close to there maybe you bumped it and it got caught on somthing so its pulling it, which would make it rev higher

 

If it continues to do it, it may be your IAC or another sensor on your TB. We have issues with people putting intakes on TL's and CL's here at the dealer... not really seen on the RSX though, just make sure you didn't bump something loose first.