Hi I am new to this forum but I am really struggling with this problem. Have a 2007 mustang gt with whipple supercharger set at 10 psi. I Have a bad belt tensioner and dont know if I should buy a stock replacement or go with something else. It is making a chirping noise. Also I did not install supercharger and do not have instructions and I imagine its not just a basic replacement as if the car was stock. Any help would be greatly appreciated....