If you go with RAWTEK stuff, you will not need any custom work.. the fact that I need custom work is because I have a RAWTEK DP and a DPE exhaust. I bought the exhaust used, couldnt pass it up. However, I have a personal friend doing my Exhaust and also put on my coilovers so I dont know if how much I am paying him is a legit amount. It's a good amount, but for the work being done, in my case, its a very good deal. Not sure how far you are from NC, but he is willing to do others.