NewsSource
06-01-15, 09:02 AM
The bump in factory-supplied horsepower comes courtesy of larger intake and exhaust valves, better valvesprings, revised intake and exhaust camshafts, and revised ports for improved flow.
Click to Read Full Story... (http://www.mustangandfords.com/how-to/engine/1506-roush-performance-s550-supercharger-install-on-a-2015-ford-mustang/)
Click to Read Full Story... (http://www.mustangandfords.com/how-to/engine/1506-roush-performance-s550-supercharger-install-on-a-2015-ford-mustang/)