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Billet Aluminum Underdrive Water Pump Pulley – Evo 4/5/6/7/8/9 $105
- 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!
- $105 shipped.