To change the drivebelt with a Vortech you need to remove the bracket. It sounds like a huge pain but it honestly isn't that bad especially if you have an extra set of hands. As for moving the belt tensioner get a 16" pipe wrench to grip the tensioner from under the car and it will turn easily allowing you to remove the belt. It sounds kind of crazy but I got the tip from a guy who has installed 100s of Vortech kits and it is how I have done it the last few times I needed to remove the belt!