Chev LS1 FAST LSXR Intake Manifold 102mm Cathedral Port # FAST146302BChev LS1 FAST LSXR Intake Manifold 102mm Cathedral Port # FAST146302B Intake Manifold, Fuel Injected, Polymer, Black, Chevy, LS1, LS2, LS6, Each Cylinder Head Configuration: Cathedral Port LS1 LS2 LS6 Fuel Injection Style: Multi port Basic Operating RPM Range: 1,800 6,000 Intake Section Included: Complete Throttle Body Bore Size: 102mm Engine Block Deck Height: Standard deck Injectors Included: No Multi Port Fuel Rails Included: No EGR: Yes