Saw an item on e-bay called an MIP boost bottle. They didn't explain how, but it is supposed to give you more low end power. Has anybody used this and is it worth it?
no they are not worth it. they claim they equlize the pressure in the crank case. but no one ever notices any thing different plus u have to drill a hole in to the crankcase and if u do it wrong your in deep s*** cause u can't patch it and it makes the TRX 2.5 warrenty void.