BOYESEN engineers embarked on a mission to create a new lineage of aerodynamic intake technology by refining the primary performance factors required to increase peak horsepower through design innovation: Aerodynamic Surface Optimization, Model-Specific Reed Petal Tensioning, Material Fuel Resistance, and Multi-Stage Reed Timing. Together, these innovations create a new technological benchmark in intake performance. One-piece design. Maintain flow velocity through the valve and redirect intake charge for even distribution to intake ports. Pull a gear higher on uphills; instant acceleration makes passing effortless. Made of one-piece aluminum casting and bolts in easily; no modifications necessary. Easy installation. Note: Image is representational - actual product may vary.