has anybody done this yet??? I have seen it done on a 00 coupe, when it goes under the rlca or in the middle of the two, and is there any complecations???

 

Only complication would be scraping if it's too low. Since I'm assuming you are running huge pipe with a turbo (since you can't just run it in the normal location), I would consider ovaling the pipe on that section to help prevent scraping.