I was wondering that if I take the bumper cap to a buddy of mine at a body shop, and he does what he has to do to make it a single exit..what would the rear of the car look like while the cap isn't on there? are there any pics of single exit exhausts that don't have the bumper cap attached to the rear bumper?

 

like these cars;

https://www.s2ki.com/forums/index.php?showtopic=588671

 

I meant what will it look like without the cap, while its being worked on

 

IIRC, its part of the bumper, so to take it off you would have to cut it off.