Want to increase the boost level of your Saleen Supercharger equipped 05-09 Mustang? Blow-By Racing has the answer your calling with our different diameter pulleys.
Our New Pulleys are made from 6061 Aluminum with a hard coat Black anodize
3.00 13-14 psi
3.20 11-12 psi
3.40 9-10 psi
3.60 7-8 psi