2.5
149 reviews
Content rating
Everyone
10K+
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Everyone
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About this app

Tune your Harley-Davidson® with your Android!

Fuelpak® FP4 from Vance & Hines makes your Android one of the most powerful flash tuners available. You've already selected the best exhaust system for your Harley, now complete the package with the Fuelpak FP4 for optimized performance.
With this app and the required hardware you can:
- Download dyno tuned maps specific for your bike/pipe combination
- Adjust individual parameters in your fuel and spark tables
- AutoTune your bike
- Read and clear Diagnostic Trouble Codes
- View live sensor data

At any time, if you need assistance tuning your Harley, you can upload your map to a Vance & Hines Customer Service Representative for review and download the recommended changes.

("Harley-Davidson" is a registered trademark of Harley-Davidson Motor Company.)
Updated on
May 27, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

2.4
142 reviews
Alan
June 25, 2026
Not going to lie, I'm extremely disappointed with this. I spent all this money and get an app that barely works, doesn't stay connected while auto tuning, and when I try to flash the tune after auto tuning for about a week, it just stays in an infinite loading screen. I can't flash the updated tune. I like to think that V&H is a premier company, but this tells me that I'll probably never buy another V&H tuning product again. Y'all need to do better.
1 person found this review helpful
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Jay Tee
May 7, 2024
*UPDATED REVIEW* While i am still pretty disappointed in FP4 (FP3 still is a fantastic product), the connectivity has improved quite a bit as of 5-5-24.... i was able to actually use most of the adjustments i was able to access in the FP3, and they do have a few more exhaust brands available now... So, as such i'm going to raise my star rating to 3 stars due to improved operation... i'm still pissed about getting used as a beta tester for full price, but, things appear to be improving....
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James Clifford
May 11, 2023
So far, it works. It takes several tries to connect the phone and FP4. But once it connects, it seems to work. I've done "auto tune" three times, so far. I'll update this when I'm done. I had an FP3 and it worked perfect. Sadly the FP3 is gone. Up-date: After two software updates FP4 is worse than before. It often takes so long to connect the phone to the FP4 that the bike is hard to start. 1 in 5 times, I give up. If it works, DON'T FIX IT.
8 people found this review helpful
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What’s new

FP4 just took a giant leap forward! This latest update ensures FP4 remains available to users with devices running Android 8 through Android 16.

Your passion fuels our drive to innovate. Thank you for being a part of the Vance & Hines family.
Content rating
Everyone
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App support

About the developer
V&H Performance, LLC
help@vanceandhines.com
13861 Rosecrans Ave Santa Fe Springs, CA 90670-5207 United States
+1 562-228-7744