F.A.S.T. LSXHR Intake Manifold - 103 mm Throttle Body Flange - Tunnel Ram - Rectangle Port - Fuel Rails Included - Plastic - Black - LS3 931171 GP-1 achieves a higher Pressure-Viscosity

GP-1 achieves a higher Pressure-Viscosity Coefficient for excellent HTHS film thickness

654" Length

Elgin solid lifters are available for Chevy and Ford applications

This pan requires our 18-311 pickup

F.A.S.T. LSXHR Intake Manifold - 103 mm Throttle Body Flange - Tunnel Ram - Rectangle Port - Fuel Rails Included - Plastic - Black - LS3 931171 GP-1 achieves a higher Pressure-ViscosityVirtually eliminates heat soak Average 30 HP gain over competitor tunnel ram manifolds Rated for up to 45psi of boost pressure Forward or firewall facing throttle body installation Available for rectangular LS3 and raised port LS7 enginesFAST is the leading developer of electronic fuel injection systems, EFI components, intake manifolds, tuning tools for high performance and street applications. For over 10 years, FAST has been recognized as the