I have an XRT PRO that I pulled from my 2012 Cummins. Works amazingly well, no problems, no check engine light! Remove DPF and EGR code free! I do have the 4" stainless Diamond Eye down pipe and EGR delete pipe to go with it. I think it should fit 07. 5 to 12 Cummins. Ended up buying a 2013...