Its a 3" core. That was the reason i didn't get the 3.5 or 4 because i did not want to modify the bumper that and i dont have a big turbo setup so there was no need. But yea it could be that the bumper is just rubbing. Ill have to jack it up, leave the engine running and see if i could find anything that is rubbing.

 

hmm.. it could be your cf lip makes your bumper that way. Who knows. haha. Just throwing ideas. Jack up your car and see if anything close to bumper. Hopefully easy fix. Good luck man~.

 

Yea maybe
A those ideas are helpful because it makes me check it out, and scratch one less thing to worry about.
Thanks man.

 

Thanks for the reply i really appreciate it.
Yea there is a little gap bettween the bumper and headlight. If i could remember there is a clip on the driver side right underneath the headlight that was broken, but i could not do anything so i ended up putting a zip tight. I might have to take off the bumper and order that clip from mitsu. But is the bumper supposed to be that loose?