Holley Boost Control Solenoids 557-201 pre-bent-brake-lines 50-inch mandrel-bent 16-gauge stainless steel

50-inch mandrel-bent 16-gauge stainless steel tubing for maximum flow

Our hoses are either rubber or braided stainless depending on the application

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Detailed Installation Instructions

Holley Boost Control Solenoids 557-201 pre-bent-brake-lines 50-inch mandrel-bent 16-gauge stainless steelSOLENOID, BOOST CONTROL Introducing 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 leaks out of the manifold. A black anodized billet aluminum manifold, with built in mounting provisions. Two pre terminated connectors for a quick installation, and extra pins