Hey guys, Im thinking about finally putting my x pipe on my mustang this weekend but I have a few questions. I have a UPR catless x pipe. My car still has the original smog pump on it that goes into the factory h pipe. The new x pipe does not have anywhere for the smog pump to go into so is it alright If I just leave it disconnected or is that going to make the car run ****ty? I was told not to crimp the metal tube that comes from the smog pump as this will make the car run ****ty as well. I was thinking about getting a smog pump delete from UPR since it's only like $50 and getting some new 2.5" flow tubes since the ones that are on my car now had to be flared on the end just to be big enough to fit inside of my flowmaster's. Anyway's is this combo all that I need and am I getting myself into a major project? Is any of this going to make my car run ****ty? I'm assuming the the check engine light will come on since there will be no cats but what about the smog pump? Will my computer need to be retuned? Thanks!