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Vehicle Info NeededHOLLEYPART NUMBER: 510-557-201
557-201 EFI Boost Control Solenoid Kit
$47895
1 left in stock
Ships on Sep 08, 2026
Lowest Price GuaranteeEFI Boost Control Solenoid KitFor 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
Includes:
Holley 557-201 Features:
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 for those of you wanting to cut the harnesses to custom lengths. Finally two 1/4" push-lock fittings to simplifying the installation process. The Holley EFI boost control proprietary solenoid design flows nearly 40% more than comparable designs and up to 90% more than conventional 3-port boost control solenoids.- Black Anodized Billet Dual Port Manifold
- Two 1/4” NPT Push-Lock Fittings for easy plumbing and installation
- Two Pre-Terminated connectors simply plug into the solenoids and pin into Holley EFI ECU connectors
- The billet manifold contains built in mounting provisions, setup for ¼ hardware
- Proprietary design to flows nearly 40% more than comparable designs and up to 90% more than conventional 3-port boost control solenoids
Part TypeBoost Control Solenoid
BrandHOLLEY
Package Height3.3
Package Width3.6
Package Length5.7
Weight1.075 PG
Part CategoryPerformance Parts
Part FitmentUniversal
Package Qty1
Package TypeEA
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