Blox Racing High Compression Exhaust Valve Set for B-series DOHC VTEC (BXPT-20201) 16320 Both use our Door Fillers

Both use our Door Fillers to complete the smooth aero styling

that increases all the way from idle to redlineandnbsp

4 Supercharged (GT500) 2009 Ford Mustang Engine: 4

Manufactured from highest grade carbon fiber raw material

Available in a Race (Cat-Bypass) or Street (Sport Cat) configuration depending on your vehicle application

Blox Racing High Compression Exhaust Valve Set for B-series DOHC VTEC (BXPT-20201) 16320 Both use our Door FillersBLOX Racing high compression standard size valves are forged from EV8 stainless steel. Each valve then undergoes a heat treatment process to increase strength then coated using black nitride to provide superior wear resistance and minimize power robbing friction. Black nitride provides the valve head with superior protection against wear and corrosion and greatly reduces the amount of friction between the valve stem and guide. The less friction