Blow-By Racing NEW 2.57 Supercharger Pulley for the New 2009-2010 Roush Supercharger. Our new pulley is designed for the Gen V Eaton supercharger. The pulley will now be a press on fit.
R&D testing has shown boost increase from stock 5 psi to 9 psi and 30-40 rwhp & 30-40 rwtq
Pulleys are NOW in Stock !!!
Blow-By Racing is not responsible for any prices changes, mis-mark items , or any other mis-printed items.