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The 50-50 venting to the atmosphere and recirculating balance will ensure quiet operation at low boost while maintaining the performance and sound of a vent-to-atmosphere off-valve under higher loads
finished appearance through soft surfaces (carpet
Good increase in mid-range power
Developed in a professional engine-building environment
Radium Top Feed Upgrade Fuel Rails w/Top FPD Port - Subaru WRX/STI/Forester Mazda-RX-7-FC3S-1992 The 50-50 venting to theRadium Top Feed Upgrade Fuel Rails w Top FPD Port Subaru WRX STI Forester Top feed upgrade fuel rails with top mounted fuel pulse damper port for Subaru WRX, STI, and Forester. Engineered by Radium Engineering to provide superior fuel distribution and plumbing flexibility with integrated FPD mounting for high performance applications. Compatibility Subaru WRX (2002 2014) Subaru STI (2004 2014) Subaru Forester XT (2004 2013) EJ20 EJ25 engines with top