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Description
GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen SensorHP EFI ECU Harness Kits GM LS2 3 7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor 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
HP EFI ECU Harness KitsGM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor
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!
ECU is certified to ISO 8846, SAE J1171 United States Coast Guard Requirements for Ignition Protection Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I/Os than are available. If more I/Os are required, users should choose the Dominator VMS.
Software and firmware updates can be downloaded here for free.
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, USCAR (EV6 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!
Details:
- Crank Reluctor: 58x
- Ignition Type: GM LS 58x
- Injector Connector: USCAR (EV6)
Links
HP EFI Features
Shipping Notes
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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]
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★★★★★ 5
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Reviewed in the United States on September 15, 2025
★★★★★ 5
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Reviewed in the United States on July 26, 2024
★★★★★ 5
Amazing quality and quantity!
The ink was so easy to refill onto the ecotank! The colors come out so bright and viivid!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Great for Sublimation!
I’m a bit new to sublimation and was worried about having dull colors, but this ink is doing wonders! The quality is great, I can adjust the amount on the printer and get the exact, rich, vibrant colors I want. (I found some recommended settings for brightness, contrast, etc… and then tweak the cyan, magenta, and yellow to the desired amount.)
I definitely recommend getting this ink! It’s so easy to refill the printer (I have an Eco tank 15000). The cost is not bad at all. I’ve only washed some of the items one time and so far the ink has remained unchanged. Seems like a winner to me!
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Reviewed in the United States on November 29, 2025
★★★★★ 5
Vibrant colors, great traction on fabric, and easy cleanup
This sublimation ink has been a great find. The colors are vibrant and transfer beautifully to fabrics, mugs, and phone cases. The traction on the material is excellent—designs don’t smudge or fade easily after pressing.
I also appreciate how clean it is to work with. Refilling my Epson EcoTank printer was simple, and there were no messy drips or stains. Cleanup of tools and surfaces was quick with just a damp cloth.
For beginners or experienced crafters, this ink delivers consistent, professional-looking results every time.
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Reviewed in the United States on July 22, 2025