Underdrive Pulleys

Use this information and these links at your own risk.

An underdrive pulley replace the main pulley off the crankshaft, spinning the accessories slower and freeing HP for the engine.

Recent installations of the UDPs reportedly give impressive results with no significant side effects, possibly 5-8hp.

Installation/ Review


Another Source

The Bay Area Probe Owners Club does not endorse or avoid any specific automotive business or product. Use this information and these links at your own risk. I may post parts of email messages I receive. If the author objects to this policy, I will re-edit or remove the text to satisfy you.

May 1998

Bay Area Probe Owners Club

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