Holley EFI 557-201 EFI High Flow Dual Solenoid Boost Control Kit

Save $45.05

Sale price$399.95 Regular price$445.00
In stock



  • 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

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