Billet Aluminum Underdrive Water Pump Pulley – Evo 4/5/6/7/8/9

Description

• These are over sized to slow the water pump down.
• Light weight lighter then stock .
• They reduced high RPM cavitation .
• Reduces high rpm back pressure .
• Less inertia to spin the pump .
• Features an auter belt guide lip to help the belt from sliding off the pulley
• Will free up some HP because the engine rotation assembly is not fighting the water pump .
• Works on stock cars, street cars, track cars, and drag cars. Everyone wins!