These JHM Lightweight Crank Pulleys are perfectly counterbalanced just like stock for proper engine balancing while dropping nearly 8 lbs of rotating mass in the process!!! We also have the pulleys anodized in black so they more closely resemble the stock pulley and blend in better. Reducing the rotating mass of parts in or attached to the engine frees up horsepower. This modification is not a drastic horsepower increase but it is a key piece of the puzzle in unlocking the maximum available power of 4.0T FSI.

OEM Crank Pulley versus JHM Lightweight Crank Pulley Weights:
- OEM: 10.9 lbs
- JHM: 3.5 lbs

- Total Weight Savings: 7.4 lbs!

INSTALLATION NOTES:
- When doing this modification it is a great time to replace your drive or alternator belt. Search "079903137AJ" In our store.
- Torque all bolts to 20 ft lbs in a star pattern. We also recommend using loctite.

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.