FP4

Vance & Hines

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.)

Ratings and reviews

The Worst app and a terrible tuning device, app constantly says I'm not connected to internet, which I am. I've restarted my phone, Uninstalled and reinstalled the app. Still won't work. There are no tuning options for anything other then exhaust/intake. If you want to get the most out of your bike, buy a dynojet power vision. It's a little more expensive but worth it. ABSOLUTELY DO NOT BUY A FP4, WAST OF MONEY

Junk. Simply expensive junk. Constantly freezes. Can't change any of the parameters it claims you can. Every time I try to run auto-tune it just looses connection then freezes. Try to load a map and it freezes right after its done and has to be completely restarted. The app says it can't tune for aftermarket cams or engine work, yet tech support says "before I purchased it" that yes absolutely it can tune cam upgrades. Which is it?

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.

What's new

FP4 just took a giant leap forward! This latest update addresses an AutoTune bug affecting some users on CAN Legacy and CAN 2021+.

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