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557-200 Holley EFI 3 Port Solenoid Valve
$149.953 Port Boost Control Solenoid ValveIncludes: (1) solenoid, (1) ECU pigtail harness with factory crimped ECU pin, (3) 3/16" barb fittings, (1) 1/8" NPT plug, (1) Sintered brass muffler. and (1) spare ECU pin for modified harness lengths. -
557-201 Holley EFI Holley EFI High Flow Dual Solenoid Boost Control Kit
$399.95Introducing the newest development from the Holley EFI engineering team. The Holley EFI High Flow Dual Port Boost Control Kit. This kit contains a set of pre-installed high flow solenoids, which feature a dual O-ring sealing design, preventing any boost...