Fel-Pro Header Gaskets - SB Chevy - Chevy 18 - 1.74" x 1.60" Fresh Air System Inlet Ultra-Flex DP41815R HLY12-310 Color:ML Green Smoke The FAST Air Fuel

Ultra-Flex

This system integrates into the existing design of the ST5 helmet and does not require any drilling of the shell or modifications to the internal EPS foam

snug fit to enhance driver mobility

The 65cc combustion chambers are as-cast while the 72cc and 87cc chambers are fully CNCd to provide a 9

1965-1965 GMC 1500 Series

Fel Pro Header Gaskets SB Chevy Chevy 18 1.74" x 1.60" Fresh Air System Inlet Ultra Flex DP41815R HLY12 310 Color:ML Green Smoke The FAST Air Fuel Ultra Flex This system integrates into the existing design of the ST5 helmet and does not require any drilling of the shell or modifications to the internal EPS foam