I purchased an fmf desertgnarlyrevetc.etc. as soon as I bought my 2000kdx2000(used) the fit of the top mounting tab on the pipe was about 1/2 inch too low and 1/2 too far inboard. some backyard engineering(elongation of both bolt holes) was needed and also a trip to the fastener shop for a longer bolt and abunch(8) of small washers. I didnt have the patience to fabricate a spacer/bushing so its on but I dont feel happy. The performance is good.anyone else having this kind of fun. I heard ProCircuit has their s*** together. there,I am done venting. :whiner: