I finally found a gsxr1000 exhaust for my DR !!! I have it jetted for the stock headpipe, FMF Q4 and Jesse's airbox mod. Will I need to rejet or will the jetting be correct for the new mid pipe from Jesse and the X40FOX can ? By the way the guy that I got it from has 3 or 4 more take offs he bought from a local dealer in case anyone else would like to contact him about one. $100.00 each.