Description
Saleen S331 and S281, Series 6 and Series 6.5 Supercharger Pulley, made by Metco, 3″.
On a stock Mustang S281, approximately 13lbs of boost. Requires machine work to drive snout. No directions included. Machine work can be done at JB Performance for an extra fee.

Replacement 1.75" brass butterfly plate kit
JB Performance Supercharger Oil with Stage 3 Technology 8 ounce bottle.
Saleen Series VI oil fill plug
Drive snout rebuild kit for 3 5/16" and larger 