Wilson Manifolds lightweight 100-degree elbows provide the most efficient method of adapting our high flow single bore throttle bodies to 4-barrel style intake manifolds. This allows the use of a high performance intake manifold with a large diameter single bore fuel injection throttle body. These elbows incorporate a computer-optimized transition from the throttle body to the intake manifold plenum for maximum flow and optimum air flow distribution. Each elbow is CNC machined to match each end of the elbow precisely to it’s intended mating size. Commonly used for turbo & blower applications. Available for 90mm or 105mm throttle bodies mated with 4150 or 4500 series manifolds.