Billet Pro Shop Pulleys are stock look and made of high grade steel.
Precision machined bore
Press fit just like OEM
Machined to OEM specs
Uses 1045 Steel Alloy (stronger than the OEM Pulley steel)
All pulleys are black zinc coated for a nice and long lasting finish
Fits 2007 - 2012 Eaton and TVS Superchargers
Uses your Stock Belt

Engineering and Manufacturing note:

The final manufactuing step is honing the bore to achieve the best fit which is .0002 tolerance. This ensures that the bore is perfectly straight.

*2.385''/Ford Racing TVS and 2.400''/Stock Eaton REQUIRE maching of the snout.