Professional Products Typhoon Intake Manifolds are designed to provide ultimate street performance with excellent throttle response, good top end power without losing low end torque. These cast aluminum intakes typically perform best with a mild to aggressive street cam and an upgraded exhaust system in the 1,500 to 6,500 rpm range. They have endured a rigorous design and testing phase to ensure the best horsepower and torque gains before being produced. With a wide range of products available for today's most popular American street machine engines, both carbureted and fuel injected, make sure to put a Typhoon under your next project's hood.