Installed my MPx UDP. fairly easy to install once everything went to plan. It took me a considerable about of time thanks to not having the right tools. the first puller i had was too big and so i had to get something else. rented the harmonic dampener puller from the auto parts store, it worked great up until i got to the hub of the puller and the pulley was still securely on the crankshaft -.- so I acquired a small three jaw puller and improvised a way to pull it the rest of the way. Putting on the new pulley was incredibly easy after heating it in the oven like the destructions said to do.