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Holley Boost Controll Solenoid Valve (HO557-200)
Holley Boost Controll Solenoid Valve (HO557-200) is a special order in item. They take approximately 3 - 5 working days to arrive to us. Please get in touch with in prior to ordering if you are needing something more urgently.
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Description
Description
HO557-200 - WASTEGATE BOOST CONTROLLER
3 Port Valve
Part Number: HO557-200
Holley’s 3 port boost control solenoid is designed for optimal performance when using the boost control function of Holley EFI. Some setups require two solenoids and some require one. The solenoid is driven by a Pulse Width Modulated (PWM) output of the ECU. It is advised NOT 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.
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