as far as the cvt intake & exhaust, i have not gotten any belt slippage. haven't pulled the cover recently to see if any water has gotten in, though. my airbox has stayed perfectly dry (i have been in there to show some friends) since i did the mod to it. i have hit every ounce of water i can find, and plowed through most of them as fast as i could, to see if i'd run into any issues. so far, i'm very pleased.