Cooler EGTs, more MPG & constant-duty power. Steady power output even under extreme temperatures. Flows 48% better than stock. Allows for a calculated +27 hp and +51 lb-ft*. High-efficiency custom-machined durable cast end tanks with wide-open inlet and outlet. Includes mandrel-bent high-flow boost tubes - large, high-efficiency all-aluminum end tanks and all necessary hardware.