Holley EFI 557-201 Dual-Port Boost Control Solenoid Kit
- Regular price
- $239.95 USD
- Regular price
-
$239.95 USD - Sale price
- $239.95 USD
- Unit price
- per
Vendor : HOLLEY
Product Type : Air and Fuel
Sku : HLY557-201
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✔ Veteran-Owned Business | ✔ Verified Fitment (SEMA Data) | ✔ Ships 1–3 Business Days | ✔ 30-Day Returns
The Holley EFI 557-201 Boost Control Solenoid Kit provides a dual-port solenoid solution for boost control applications. Designed for use with Holley EFI systems, it offers a purpose-built component for managing boost-control functions.
This kit includes the boost control solenoid and fittings, providing the primary components identified for installation. The dual-port configuration supports the product’s specified boost-control design while maintaining a compact, application-focused setup.
With its Holley EFI fitment designation and clearly identified 557-201 part number, this solenoid kit is suited for builders and technicians seeking a matching Holley component for their boost-control system. Verify application requirements before installation.
Features:
- Dual-Port Design: Boost control solenoid uses a dual-port configuration.
- Holley EFI: Designed for Holley EFI applications.
- Fittings Included: Kit includes fittings with the boost control solenoid.
- Application: Intended for boost control system use.
- Brand and Part Number: Holley 557-201.

