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Description
HP EFI ECU & Harness Kits - 550-607NOverview: Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water meth? This HP EFI kit can control that too! Features: Simple Installation Plug and Play control of GM LS2 LS3 LS7 engines. Just plug the harness into your factory
Overview:
Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water/meth? This HP EFI kit can control that too!
Features:
- Simple Installation - Plug and Play control of GM LS2/LS3/LS7 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine
- More Functionality - Provides significantly more functionality than OEM or other competitive ECUs (boost control, nitrous control, water/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)
- Easy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time
- Ideal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution
- Industry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle
- Kit includes ECU, harness, communication cable, software, Jetronic/Minitimer (Bosch style) injector connectors, and NTK wideband O2 sensor, designed to be used with GM LS2/LS3/LS7 engines with factory GM coils and a 58 tooth crank sensor
- The NTK Oxygen Sensor is recommended when using leaded or methanol fuels, high exhaust and forced induction applications or for highest precision feedback
- ECU is fully potted and can be mounted in the engine compartment or interior
- Sealed automotive and marine grade connectors
- 1-5 Bar MAP sensor capability
- Optional plug and play hand-held programmer, 5.7" touch screen and digital gauges are available for ultimate control and vehicle monitoring
- ECU is certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance
- For a full list of advanced features such as boost, nitrous, water/meth, individual cylinder control and more click the document icon under the product image!
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Holley EFI |
|---|---|
| Crank Reluctor | 58x |
| Emission Code | 4 |
| Ignition Type | GM LS 58x |
| 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:
- 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
4.3 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 3
I don't understand the Hype.
Format: Paperback
Everyone seems to love Glannon but I found other E&Es to me much straightforward and easy to understand. Don't know what it is about Glannon's writing. Not terrible, just not conducive to me for whatever reason. Negligence sections were lacking.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2022
★★★★★ 1
Garbage. Order from a REAL bookstore or publisher
Format: Paperback
Book came cut off and assembled UPSIDE DOWN wtf is this?? Definitely demanding a refund. This is straight up GARBAGE should've just bought from b&n
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2022
★★★★★ 1
Came used with dirty pages
Format: Paperback
The book clearly is not new, the pages are folded over and dirty with dirt. There is a sticky residue on the back cover of the book. Really gross.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 15, 2021
★★★★★ 5
Best E&E out there
Format: Paperback
This is the best E&E book out there! Helped me a ton in Torts and I owe my A in Torts to this book. There's a whole section on how to write a torts exam and the examples & explanation sections are AMAZING and really detailed. The best sections are on factual/actual cause and proximate cause and the nuances between the two.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2025
★★★★★ 5
Golden Book Baby Animals
Format: Hardcover
Love the book!!! ADORABLE!!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
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