I took my pulley in today and had it cut down so it's even with the OEM now. It cost me $47.50 and they were done within an hour. I also picked up a new serpentine belt from M-B for $55 and another new crank bolt $1.50. If you add in the $50 bearing I bought to replace the failed on on the LET idler pulley these aftermarket pullies have cost me $154.00 in maintenance in less than one year and 3,500 miles of driving(with pullies in place).