E-Tuner 4

Name: E-Tuner 4
Rating: 4 (22 reviews)
Author: Edelbrock Corp

By: Edelbrock Corp

Utilities

Features & Capabilities

E-Tuner 4 is Edelbrock's iOS app for Pro-Flo 4 and EZ Street EFI Systems.

E-Tuner 4 is Edelbrock's latest exclusive iOS app for the Pro-Flo 4 and EZ Street EFI Systems.

E-Tuner 4 communicates with your PF4 or EZ Street ECU via Bluetooth, so you can manage and live-tune a variety of ECU settings such as air-fuel ratios, ignition timing, idle speed, acceleration fuel, or cold start mixture as well as monitor engine and sensor data in real-time wirelessly from your iPhone or iPad.

The E Tuner 4 Setup Wizard simplifies your Pro Flo 4 or EZ Street EFI setup by assisting you with selecting the proper base calibration for your specific application. All you need to know is the engine displacement (CID) and camshaft, and kit specifications, and you're good to go!

E-Tuner 4 applies a solid base calibration so you can run the vehicle without having to change any tuning settings. But, if you'd like to make changes, E-Tuner 4 offers a selection of "Advanced Tuning" functions to help dial in your calibration and get the vehicle’s performance exactly where you want it. Whether you'd like to run a bit leaner while cruising for improved mileage, or advance timing for more performance, the Advanced Tuning section is there for you. A diagnostic page for troubleshooting purposes is also available.

Once you're up and running, feel free to explore E-Tuner 4’s vivid gauge displays to monitor your engine's performance. Unlike other tuning hand-held combos, you can actually use your phone or tablet as a mini-dashboard once you're done tuning.

You can also preview E-Tuner 4 without being connected to an Edelbrock EFI System by enabling "Demo Mode." This will allow you to access the app's main features, and interact with pages like the Setup Wizard, Advanced Tuning, and Gauge Displays to get a feel for how E-Tuner 4 functions.

*** Warning! *** E-Tuner 4 is only compatible with the Edelbrock Pro-Flo 4 and EZ Street EFI Systems. It is NOT compatible with V1 E-Street, V2 E-Street, or Pro-Flo 3 EFI systems nor does it work with other Edelbrock Legacy EFI Systems.

The E-Tuner 4 app supports all iPhones and iPads running iOS 16 and higher at this time. Please check back later for updates

User Growth & Download Statistics

App

By:

Edelbrock Corp

Rating:

4.00

(22)

Version:

4.0.22 Last updated: 2026-04-23

Version code:

884797023

Creation date:

2021-08-03

Compatible devices:

Size:

50.22MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-11

Compare stats and ranking:

Ranking

# 287,406 ▼ 1,118

Other rankings

#50 in inject keyword 14 ▲ 37

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Edelbrock Corp

Apple Apps Store

https://apps.apple.com/us/app/e-tuner-4/id1579096205

Website:

https://www.youtube.com/watch?v=DiYhxPsee3s

User Reviews

Reviews for E-Tuner 4 on iOS show appreciation for the iOS version and ease of use, with on-the-fly tuning and telemetry praised. However, multiple reviews converge on several recurring issues: slow or absent updates, problematic temperature readings in past versions, limited gauge customization, and iPhone/iOS connectivity problems. The most mentioned concerns focus on update cadence, temperature accuracy, gauge configurability, and iOS compatibility, while positives center on parity with Android and user-friendly operation.

Pros

iOS version exists and parity with Android features.
The app is easy to use.
Tuning on the fly is supported.
Telemetry data is available and helpful.

Cons

Update cadence is poor; reviews repeatedly request updates and note long gaps.
Temperature readings are inaccurate in some versions and have required fixes.
Gauge display/configuration is limited; users want more customization (contrast, digital/analog, size, placement).
iPhone/iOS connectivity and pairing issues persist compared to Android.

Recent reviews

Please update this app for the love of Pete

by Ma*****, 2026-04-12

The Android version is way better than the iPhone. iPhone 17.

by 68*****, 2026-03-31

You haven’t updated this app for 2 years? Do you not have a product management team constantly trying to innovate your products? All your YouTube videos are old. What’s your marketing team doing???? You need to invest in marketing and updates. Get out there and compete with Holley. Also get more friendly customer service for EFI. One guy is friendly…I don’t want to put his name here. The rest are dismissive and have zero customer Service skills and I’ve left every call feeling frustrated. Like when asking what fuel pressure regulator they recommend for this system….the response was “there’s some on our website just go look.” Holley however gave me all their exact part numbers, what the differences were, and what they recommended. I ultimately chose Edelbrock for the port injection, so I’m going to roll The dice and hope The tech is solid and that I don’t need much customer Service. I hope Someone in leadership at Edelbrock hears this feedback.