Holley 557-201: 557-201 EFI Boost Control Solenoid Kit
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EFI Boost Control Solenoid Kit For use with Holley EFI ECU Includes: (1) Black Anodized Billet Aluminum Manifold (2) High-Flow Solenoids (2) 1/4 in. NPT Push-Lock Fittings (2) Pre-Terminated Wiring Connectors
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