Elevate your engine's performance with the Speedmaster Downdraft EFI Stack Intake Manifold System, designed for drivers who demand both power and precision. These systems deliver crisp, race-inspired EFI performance, capable of supporting up to 1,000 horsepower in demanding applications. At the heart of the design are precision-cast aluminum, 50 mm IDA-style throttle bodies that supply optimal fuel and air, resulting in superior idle characteristics and lightning-fast throttle response. The down