Unique 3x4 rotor combo for substantial boost in airflow under the curve than a lot less economical 4x4 roots *Savings on pieces within the company or aftermarket. "We under no circumstances shell out retail if we don't have to.” Compact runner and modest volume manifolds bring about excess boost "Establish-up" https://franciscotqkdw.blogmazing.com/24695218/not-known-details-about-2014-ford-mustang-gt-whipple-supercharger