Description 100% Brand new,never been used Type: For LS3 L92 Intake Manifold(Rectangle Port ) Material: Aluminum RPM Range: 2500-7000 RPM Single Or Dual Plane Type: Single This intake manifold offers greater air flow potential Satin finish Professional installation in highly recommended. No instruction included. Fitment Compatible with all GM LS Gen III or IV engines equipped with LS3/L92 cylinder heads, and designed for 4150 style square bore flanged carburetors or throttle body EFI. Package Includes 1*Intake Manifold 1*Fuel Rails kit .