12 Rib GRIM REAPER Package - Camaro / CTS-V / CT5-V - LT1 / LT4

Crush the competition with the ultimate supercharger belt drive system from TooHighPsi for your LT1/LT4 powered race cars. The TooHighPsi's Camaro platform GRIM REAPER 12 Rib Drive Package is a complete 12 rib upgrade including a REAPER Belt Drive Kit, a THP SLAYER Belt Wrap Kit, and choice of a 12 Rib 10.00" (+25%), 10.32" (+28%), or 10.45" (+30%) Crank Pulley - all at a lower bundled price!

The TooHighPsi GRIM REAPER Drive Package is a custom LT4 based 12 rib kit designed for high-performance race cars, maximizing belt grip so your supercharger maintains full boost all the way to the finish line!

The package includes the following:

• REAPER 12 Rib Belt Drive
• SLAYER Belt Wrap Kit
• 12 Rib Crank Pulley

Sold separately:

• 12 Rib Supercharger Pulley for Magnuson 2650

Installation Notes:

• Pulleys will not mount to stock crankshaft pulley, they require the ATI damper #918856 for fitment.
• We recommend using all 6 bolt locations when mounting the 12 rib pulleys to the ATI damper. Use the optional THP Drill Jig Kit if extra holes need drilling in the damper shell. The damper hub is already re-drilled and tapped for 6 bolts.

Too High PSI shipping & returns

• Processing: please allow 2-3 business days. Custom items (lids, valve covers) need an extra 7-10 business days.
• Returns: new, unused and uninstalled parts in their original packaging with all components, requested within 30 days of purchase. A return authorization (RMA) is required before shipping anything back.
• Not returnable: used, installed or damaged parts, items without original packaging or missing components, and custom or special-order parts.
• Fees: 15% restocking fee on eligible returns; outbound shipping is non-refundable and return shipping is paid by the customer. Orders cancelled before shipment carry a 3% processing fee.

To start a return or ask a question, contact us with your order number.