Engine Intake Manifold 81137

TSP's single-plane high-performance intake manifold for the GM LS Gen III Cathedral Port is ideal for street performance EFI applications. Its design improves power and torque over a wide rpm range - 3,500-7,500. It is cast from lightweight aluminum includes fuel rails for easy installation. Pair with TSP's throttle body elbow for a unique fuel-injected set-up.