FP4 Tuner
$459.99
The Vance & Hines FP4 brings our legendary fuel tuning and performance to your 2021-2023 Harley-Davidson Touring and Softail models, with all new features, and the ease of use you expect from Vance & Hines.
FP4 is now also available for Touring, Softail, Dyna, Sportster, and Street models from 2007 and up.
With its state-of-the-art Bluetooth enabled app-driven technology, FP4 empowers you to do 100% of your tuning right from the palm of your hand with your mobile device, backed by industry-leading customer support, all while maintaining 49-state emissions compliance and thereby keeping your Harley-Davidson factory warranty intact.
SHIPPING NOTE: Due to state regulations this item cannot be shipped to customers in the state of California.
Mark C (South Africa) –
5 Stars… plug in, follow instructions and done! A single bike tuner that sorts all the issues you could think of regarding tuning to a V&H pipe(s). Super recommended. Now have to buy one for my wifes Softail Deluxe 2011! Awesome job V&H!
Matheus –
Got FP4 with Slash Cut Slip Ons and VO2 on my 21’ Iron 1200, very happy with results, easy to connect, flash map and tune/access information.
John Lemoine –
Put FP4 on my 2021 Ultra Limited 114 with Rinehart slip-ons and Rinehart Big air sucker intake last year used a provided map off of the FP4 worked pretty good did a auto tune and made a huge improvement. Hoping V&H will add maps for stage 2 at some point.
Thomas –
Easy to instal and easy to tune. Installed on my 2009 sportsterxl1200
Kapena F. –
Good
William Thompson –
I’m 69 years old and put a vo2 filter and 2 into 1 slip-on with fp4 on my 2014 switchback! Just watching videos made it simple! Thanks for all the information! Now it sounds like a Harley 😉
Eric –
Installed after during the winter with no issues and great performance. While applying the auto tune I was running, I interrupted the upload and locked my ECM. Contacted customer service and they emailed a shipping slip to send the ECM and FP-4 and it was there within two days. A day after delivery the tech assigned contacted me to ask what I was running so he could modify a tune based off of what I was running. The ECM and tuner were delivered the following day (California to North Carolina) and it started right up. Bottom line; great product, better customer service. Extremely satisfied. Thanks Matthew!
Ed –
While waiting for my slip-ons, did a “stock” tune on my stock 21 Heritage 114. Wow! What a difference. Smoothness, power, all on a stock setup. Can’t wait for my Eliminators.
Wil.D –
FP4 made an immediate improvement to my 2016 Ultra Limited. I had a factory installed tune with my Stage 1 which seemed okay until I decatted the header, then there was nothing but popping & backfiring. That is all gone and the bike is more responsive, quieter and even a little bit more fuel efficient.
I am looking forward to an upcoming update to correct some readouts on my ios device.
Bradley Howard (verified owner) –
Amazing product! I was skeptical at first due to YouTube reviews and TikTok reviews, but I bit the bullet and went for it. Picked up a FP4 for my 2020 Iron 883 and couldn’t be happier. The bike feels and runs great. 10/10 would recommend. The autotune feature is nothing short of awesome!
Grant Petreikis –
The best tuner (and much more) out there today! You can monitor your bike, tune your bike, and tons more…. All at the touch of your phone!
This FP4 puts the power back to your wheel!
Martin Garnett –
I have a street glide with high output slip-ons and the power headers. The included fp4 map for this configuration is awesome, but I sincerely hope for throttle response adjustment in a future software update.
Sutoyo –
Good quality
Joe Cameron –
Wow! No lag, no bumpy throttle, all performance! Easy install too! Highly recommend!