So I was looking to put a PMB end cap on a 09 YZ muffler, but the YZ guys say the 08-09 cans are the most restrictive to date. Found the Lexx MXe slip on @ RM for $200 and on Ebay for $170. The PMB setup with silencer will run $170ish. The Lexx seem to be adjustable sound wise and I have yet to find a neg review. Does anyone know what to expect sound level wise on a 09 WR450 w/ a 09 YZ header and weight?