Download Part # 307-05-0290 Racing Intake Manifold for • 1999-2000 Honda Civic Si • 1997-2001 Acura Integra Type-R • 1992-1993 Acura Integra GSR • 1994-1997 Honda Del Sol DOHC VTEC. Removal 1. Relieve fuel pressure by loosening banjo bolt on top of fuel fi lter. Disconnect the fuel line at fuel rail. It is recommended that the washers be replaced. Next, disconnect the fuel injector harness holder and unbolt. Disconnect hoses from fuel pressure regulator (FPR). 2. Disconnect intake tubing/pipe from throttle body. Next, disconnect all hoses leading to intake manifold and throttle body, including throttle cable bracket on manifold. On throttle body, disconnect throttle positions sensor (TPS) and map sensor. 3. Unbolt manifold bracket from engine block and intake manifold. This bracket will not be used in assembly and installation. Remove intake manifold, throttle body, and fuel rail as one unit. Inspect intake manifold gasket. Replace as needed. Make sure to note all disconnect hoses and sensors. 4. Unbolt throttle body from intake manifold; inspect throttle body gasket for damage. Replace as needed. Unscrew throttle body bolts from fl ange. Remove fuel rail assembly. 5. From factory intake manifold, unbolt and remove idle air control (IAC) valve, intake air temperature (IAT) valve, and O-rings. Inspect O-rings and replace as needed. Unscrew intake manifold bolts from fl ange. *For 99-00 Civic Si: IAT sensor is located on intake tubing/pipe.