I wouldn't take it off also for the fact its for ease of timing, just line up the notches, done. I am currently not running the front plastic one but I am very inclined to get a clear one. Left it off because I work on it a lot but mainly wanted to be able to see condition of the belt. Spot of bad luck the fan shroud broke and fell into the fan annihilating it and it sent a piece between the belt and the gears causing my timing to go out of wack. Yes it's a bitch you gotta take the t-stat housing off, but a small price to pay for security.