300 head insert for 7000 ft elevation and up$79.95PriceThis insert will keep you in the area of 180 - 185 psi at 7000 ft, depending on your base gasket stack thickness. Run this insert above 7000 ft elevation Made from 2024 aluminum, so it's strong, yet flexible. This keeps it from crackingOut of Stock
300 head insert for 7000 ft elevation and up$79.95PriceThis insert will keep you in the area of 180 - 185 psi at 7000 ft, depending on your base gasket stack thickness. Run this insert above 7000 ft elevation Made from 2024 aluminum, so it's strong, yet flexible. This keeps it from crackingOut of Stock
