These are a 8-rib design for those of you that have upgraded your crankshaft pulley and idlers. If you need idlers I make these as well. If you'd like to upgrade to an 8 or 10 rib system and have a crankshaft pulley I can make you idler pulleys.
6 Rib Magnuson Magnacharger TVS2300 / TVS1900 Supercharger Pulley
Magnacharger Magnuson Supercharger Drive Pulley Belt 8-Rib 8PK562 K080220
Magnuson Supercharger Pulley 8 Rib 4 Bolt 98mm Diameter 57-03-08-098-BL
Magnuson Pulley 8 Rib Upper Pulley 3.100
Magnuson Pulley 8 Rib Upper Pulley 3.225 Wegner
Procharger 4.50 8 Groove NON Offset Supercharger Pulley 8 Rib
