Holley EFI High Flow Dual Solenoid 557-202
Type: Boost Control Part
This kit contains (1) high flow solenoid for service replacement in the field, recommended for 557-201.
Features:
- Pre-Terminated connectors simply plug into the solenoids and pin into Holley EFI ECU connectors.
- Proprietary design to flows nearly 40% more than comparable designs and up to 90% more than conventional 3-port boost control solenoids.
Specs:
- Brand: Holley EFI
- Category: Air and Fuel Delivery
- Color: Black
- Emission Code: 4
- Grade Type: Performance
- Inlet / Outlet Size: 1/4" NPT
- Material: Billet
- Part Type: Turbocharger Electronic Boost Controller
- Product Type: Boost Control Part
- Sub Category: Turbocharger, Supercharger and Ram Air
Tech Resources:
When selecting solenoid configuration in the Holley EFI software, use the Dual Holley drop down selection.
It is not advised to use the PWM+ outputs on an HP ECU, but rather use the PWM- Outputs. If you have a Dominator ECU, either use the PWM- outputs, or use a PWM+ output on the J2B connector.
Instructions - 557-201_mounting_template.pdf
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Important Notices
- Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
