2006 YZ 450F I picked up a White Brothers Carbon Fiber exhaust system yesterday and I was hoping for $800 the thing would bolt on a little easier. The exhaust flange on the header pipe does not align with the bolts on the cylinder. The holes on the flange are off by about 3mm. I have turned the flange around several times and no way is this thing going to bolt on unless I want to get out a drill. Also the muffler/slip on does not sit very snug against the side panel - maybe a 1/2 or 3/4 inch gap between the muffler and the two rubber inserts on the panel. Anyone else have this problem?