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The Radium Engineering Port Injection Kit (PIK) installs between the intake manifold and the cylinder head and permits the use of port injectors to add additional fuel for high-horsepower modified K20C1 engines
Replace when dirty to maintain peak performance power
6 Whp horsepower
75" and 2" piping diameter
Direct bolt-on for factory-like simplicity
ACT Heavy Duty Pressure Plate / Performance Disc Clutch Kit - Subaru STI VA ISC Suspension The Radium Engineering Port InjectionFits 2004 2020 Subaru STI This particular clutch kit has been designed with an increased torque capacity over OEM standards and is a great clutch for those of you with moderate bolt ons. Here are more details: Alignment Tool Release Bearing Heavy Duty Pressure Plate Performance Street Sprung Disk Pilot Bearing 515ft lbs Crank torque capacity 45% Torque capacity over stock Recommended for street or race use
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