Were you able to or are you going to be able to keep the two lower bumper supports in place? Cause it looks close based on the cut needed. Or do you remove them with extra structural the diffuser gives? Send some pics if you can. I think the tip issue is going to involve getting a pair that is close and having a muffler shop do the final mods and fitment. I can't wait to get mine and put it together. I was going to install the diffuser and just run with the singles till I get the quad tips but I couldn't hang with the look, so I am waiting.