I bought one of the GYTR baffle inserts for the stock exhaust on my '01 WR426, and the friggin bolt keeps falling out. Now the aluminum threads are stripped. Has anyone else experienced this with their ProMotoBillet or GYTR inserts? Do you think threadlock or anti-seize would help? The GYTR baffle bounces around like a mother depending on RPM; I can't believe it if nobody else has this problem... Are there any new inserts on the market?