Simpson Racing SA2020 Diamondback Racing Helmet 1991-pontiac-firebird-esi1705191 Maximum dyno gains of 12

Maximum dyno gains of 12 hp and 13 lb-ft were measured at the rear wheels

Bumper - S2 Sportsman - Front - 1

Pedal Pad - Gas - Stainless Hardware - Aluminum - Black Anodized - GM F-Body 1967-69 - Each

Axle Bearing Race - Steel - Frankland Side Bells / Hubs - Each

Fuel Pressure Gauge - Ultra-Nite - 0-15 psi - Mechanical - Analog - Full Sweep - 2-5/8 in Diameter - Liquid Filled - White Face - Each

Simpson Racing SA2020 Diamondback Racing Helmet 1991-pontiac-firebird-esi1705191 Maximum dyno gains of 12A major revision to our Simpson Diamondback for 2021 combines a new Italian composite shell with a shorter chinbar and changes to the visor mounting for improved fit and function while also providing enhanced impact protection. Helmet ships with one clear face shield installed, additional face shields may be purchased separately. NOTE: This helmet is Snell SA2020 certified and is broadly accepted by race organizing bodies and tracks through 2030.