Fuelpak FP4

Fuelpak FP4

by V&H Performance, LLC

54 ratings
101 reviews
Free

Details

  • Released
  • Updated
  • February 25, 2022
  • May 4, 2026

Features

Fuelpak FP4 screenshot #1 for iPhone
Fuelpak FP4 screenshot #2 for iPhone
Fuelpak FP4 screenshot #3 for iPhone
Fuelpak FP4 screenshot #4 for iPhone
Fuelpak FP4 screenshot #5 for iPhone
iphone
ipad
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About

Optimize your motorcycle's performance by tuning it directly from your iPhone. This app allows you to flash custom maps, monitor live sensor data, and diagnose engine issues. It's designed to work with specific hardware to unlock your bike's full potential.

โœ“Flash dyno-tuned maps
โœ“View live sensor data
โœ“Read/clear diagnostic codes
โœ“Revert to stock settings
โœ“Access support videos
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What users say

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What's New in Fuelpak FP4

2.2.4

May 4, 2026

We added UI/UX changes to make navigation easier and updated support for 2024 motorcycles. Have fun and drive safe!

User reviews

Works but has major issues on iOS

Very glitchy app. Will not stay connected to Bluetooth so if your trying to autotune or see live data you can forget about it. Had issues flashing maps. Says failed all the time but will actually flash the map to your maps page. Could be good if it wasnโ€™t so buggy, especially for the price

Nice tuner

Absolutely no issues flashing my bike. Ran good even before autotune. I like how it shows you RPM, throttle position, temperature and everything. I do recommend this tuner perfect for stage one set up

Not happy with it

Wont even let me access any maps or any options just says choose !

2020 road glide

This tuner was such a waste of money. Really wish I could get a refund

Wonโ€™t flash older Harleys

Wonโ€™t flash if battery voltage is below 12v. Apparently older (2008) Harleys have accessory draw that pulls voltage down to 11.7v, so must remove accessory fuse to flash. Which means removing the seat. Itโ€™s a pain.
Support said there is a fix for iPhone App, but it hasnโ€™t been released yet.

Also, similar to the other reviews, it can be a pain having to restart the app while on the road just to re-establish the Bluetooth connection.

I had hoped for a better user experience from a $600+ product.

(July: promised update still not available in the App Store. Still wonโ€™t flash. Whatโ€™s the point?)
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Developer apps

User experience

๐Ÿž

Reported Bugs

4 issues

App freezes during firmware updates

Bug

Unable to apply auto-tune mapping

Bug

Incorrect bike information displayed

Bug

Disconnects frequently during use

Bug
โœจ

Requested Features

5 requests

More exhaust and intake options

Feature

Improved Bluetooth stability

Feature

Throttle sensitivity adjustment

Feature

Speedometer calibration

Feature

Cruise control integration

Feature

FAQ

What does the Fuelpak FP4 app do?

The Fuelpak FP4 app transforms your iPhone into a powerful flash tuner for your motorcycle. It allows you to download and flash custom performance maps, view live sensor data from your bike, and read or clear diagnostic trouble codes.

What are the key features of the Fuelpak FP4 app?

Key features include the ability to download dyno-tuned maps specific to your bike and exhaust system, view real-time sensor data, read and clear diagnostic trouble codes, and flash back to your bike's stock settings. It also provides access to informational videos and customer support.

How much does the Fuelpak FP4 app cost?

The Fuelpak FP4 app itself is free to download. However, it requires the purchase of specific Vance & Hines hardware to function as a flash tuner. The app does not have in-app purchases or advertisements.

What is the primary use case for the Fuelpak FP4 app?

The primary use case is to optimize your motorcycle's performance, especially after installing a new exhaust system. By flashing custom maps, you can ensure your engine runs efficiently and powerfully with your specific setup.

Can I get help if I have trouble tuning my bike?

Yes, if you need assistance tuning your bike, you can upload your map to a Vance & Hines Customer Service Representative for review. They can then recommend changes and you can download the updated settings.