SKU: 66536978726

HP EFI ECU & Harness Kits - 550-617

Sale price$1484.97 Regular price$1649.97
Save 10%

Pay in installments of $412.49 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HP EFI ECU & Harness Kits - 550-617Overview: Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it. Features: Designed specifically for 1999 2004 Ford Modular 4 Valve Engines Plug and play with factory sensors; Crank, Cam, TPS, Coolant Temp, etc Plug and play with factory actuators; Coils,

Overview:

Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.

Features:

  • Designed specifically for 1999-2004 Ford Modular 4 Valve Engines
  • Plug and play with factory sensors; Crank, Cam, TPS, Coolant Temp, etc
  • Plug and play with factory actuators; Coils, Injectors, IAC
  • Connectors for Holley Fuel Pressure and Oil Pressure sensors
  • Connectors for expanded Inputs and Outputs
  • Complete plug and play kit includes HP ECU, Bosch Wideband O2 sensor, MAP sensor, Coil Drivers and all necessary Harnesses

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Emission Code 4
Engine 99-04 Ford Modular (4.6 & 5.4L) 4 Valve
Ignition Type 4v Ford Modular
Injector Connector Jetronic / Minitimer (Bosch)
Product Type HP EFI Kit
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 66536978726

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 30 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
V
Verified Purchase
Vincent J. Padilla
Port Orchard, US
★★★★★ 5
Perfect fit
Nice replacement on my 2016 Subaru Forester
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
W
Verified Purchase
Walter W. Watson
Houston, US
★★★★★ 5
Perfect Fit for 2018 Forester
I've purchased various filters from EP Auto and each one matches the vehicle's needs and is a good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
S
Verified Purchase
Seneca W.
New York, US
★★★★★ 4
Easy self maintenance.
Does the job of what theu try to upset you Valvoline for a fraction of the price and easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 27, 2025
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Good filter!
I have used this replacement filter for the past 5 changes. Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
D
Verified Purchase
D'Lynn
Chelsea, US
★★★★★ 5
Saved money
Saved money d.i.y.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026

recommand products