Holley EFI Holley Efi Hp Ecu

$ 1,337.95

Score By Feature

Based on 3 ratings

Satisfaction

7.05

Packaging

7.34

Delivery

7.56

Giftable

7.52

OveReview Final Score

How Our Score Is Calculated

Product Description

By entering your model number, you can make sure that this fits.

Genuine Holley Parts of the Highest Quality

Resistance to corrosion

Material is of high quality.

Simple to set up

Long-lasting and durable

Vehicle specific type of fit

Questions & Answers

Is the wire harness included in this?

There is no wiring harness included with this ECU.

What hardware version are you talking about? A close- It will be helpful if you take a picture of the sticker on the back of the unit. ?

If you're wondering what software version it comes with, it currently comes with V4 installed.

Selected User Reviews For Holley EFI Holley Efi Hp Ecu

I was disappointed

3/5

Holley 554- is the name of the product on Amazon. EFI, ECU, and Harness Kit for a 113 horsepower vehicle. The ECU does not come with a harness, so this is misleading. I got in touch with a customer service representative. rep. I bought it because she said it came with a harness, but when I got it, there was no harness, only an ECU, a cable, and an install disc (no harness kit).

Fisher Calhoun

| Dec 21, 2021

This is a fantastic ECU with a ton of features

4/5

This ECU is in use on a drag race turbocharged car. It's a very nice and easy-to-understand ecu with datalogging capabilities. This ecu comes with a variety of options and accessories. The USB port and cable should be handled with extreme caution. Mine was damaged in some way, and I can no longer communicate with the ecu using a laptop. With the optional 3, I can do almost everything my laptop could. Change the tune and recover data logs with an sd card to view on a laptop with the help of a 5 touch screen lcd display.

Nathaniel Duffy

| Sep 07, 2021

According to, the Holley HP box is a great product

5/5

However, it is not advertised correctly. The Holley HP box is a fantastic item. br>br>However, the description for this box is incorrect. This box CANNOT control Drive-by-Wire. br>br>This box DOES NOT control Drive-by-Wire. br>br>This box DOES NOT control Drive-by-Wire. br>br>This box DOES NOT control Drive-by-Wire. The description specifies wire throttle bodies. The Holley Dominator EFI is the only Holley box that can do this.

Lachlan Strickland

| Sep 08, 2021