I started to notice a vibration about in the center or my dash awhile back but never really thought anything about it... but now it's starting to tick me off and I wanna know what it's coming from... I have MAC Shorties and a MAC off-road H-pipe on it now and it vibrates... whereas before when it didn't vibrate i had the stock parts still on... thats what i'm guessin it is... any other things it could be? 
