▀▄ eas | Macht Schnell e9x M3 Performance Underdrive Pulley Installation (DIY)
In an ongoing video tutorial series from Macht Schnell, this post will outline the steps needed for installation of the the Macht Schnell Performance Underdrive pulleys on the 2008+ BMW M3:
e9x M3 S65 Performance Underdrive Pulley Set (belts included)
14mm Wrench (open end)
1-3" drive extension
1"-3" 3/8" Drive extension (optional)
Time needed for installation is approximately 60-90 minutes.