Holley Water/Methanol Injection Kits

Injection System Controllers, Water/Methanol Injection, Driver Module, 2-channel, with Wire Harness, for HP EFI or Dominator EFI, Each

Part Number: HLY-554-115

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Estimated Ship Date: Tuesday 9/2/2025

Injection Pumps, Holley EFI, Water/Methanol Pump, 200 psi, 3/8 in. Inlet/Outlet, with Mounting Bracket, Each

Part Number: HLY-557-100

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 19, 2025 if ordered today

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Injection System Reservoirs, Holley EFI, 1/2 Gallon, Plastic, 6 in. Wide x 4 in. Deep x 5 in. Tall, with Float, Filter, Tubing, Relay, Fittings, Kit

Part Number: HLY-557-101

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Estimated Ship Date: Sep 17, 2025 if ordered today

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