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Holley Boost Control Solenoids 557-200

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Sale Price:


Boost Control Solenoid, Each

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Brand: Holley

Manufacturer's Part Number: 557-200

Part Type: Boost Controllers

Product Line: Holley Boost Control Solenoids

Summit Racing Part Number: HLY-557-200

UPC: 090127683446

Boost Controller Type: Electronic

Boost Controller Style: Single solenoid

Adjustable: No

Wastegate Style: Electrical

Quantity: Sold individually.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These Holley boost control solenoids are designed for optimal performance when using the boost control function of Holley EFI. Some setups require two solenoids and some require one. They are driven by a Pulse Width Modulated (PWM) output of the ECU. It is advised NOT to use the PWM+ outputs on a Holley HP ECU, but rather use the PWM- outputs. If you have a Holley Dominator ECU, use either the PWM- outputs or a PWM+ output on the J2B connector.


Most Helpful Reviews Review this Product

1 Customer Reviews for Holley 557-200 - Holley Boost Control Solenoids

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Works perfectly

Summit RacingSummit Racing Verified Purchase

I used this solenoid to control my Subaru waste gate via a Holley HP ECU. Easy installation, good documentation, no issues.

1 of 1 found this review helpful.

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Reviewer: ROBERT from CA

Date: March 10, 2014

Ease of Installation

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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