What's Included

• 1 - 12 Rib Billet 73MM Idler Pulley (Ribbed)
• 3 - 12 Rib Billet 73MM Idler Pulleys (Smooth)
  
• 1 - 58MM 12 Rib LSA Flex Drive tensioner Pulley
• 8 - 12 Rib Threaded retainers
• 4 - 10MM x 100MM Hex Studs
• 1 - 12 Rib Spacer (Tumble Finish or Black Anodized)
• 4 - Nylon Lock Nuts

These are all the parts needed to upgrade your existing 10 rib Gen 5 Whipple 10 rib Flex Drive kit to 12 rib.