Best Auto Tuner For Harley Davidson

Upgrading your Harley Davidson with aftermarket performance parts such as intake cams, exhaust, etc., is always a sure way to increase its performance and suit your riding style/preferences.

However, most HD owners only alter the stock parts and forget to tune the bike engine for the new features.

Skipping this step is a huge mistake, given that such upgrades will always alter how your bike engine performs. It’s a good idea to adjust your bike’s operating system to optimize the engine and enable your bike to run better and faster.

The best auto tuner for Harley Davidson will allow you to properly tune your bike engine to reach its full potential for optimal power output. It puts you in control of how much air and fuel enters the engine for smoother and more fuel-efficient rides.

Our guide below takes you through some of the top-rated auto tuners for Harley Davidson available today. We have deeply researched the auto tuners and arrived at these easy-to-use, high-performance models for Harleys.

List of Best Auto Tuner For Harley Davidson:

Best Auto Tuner For Harley Davidson Reviews:

1. Vance & Hines FP3 – 66005 Fuelpak

Vance & Hines Fuelpak FP3 - 66005

Vance and Hines is one of the most popular brands for Harley Davidson tuners. And this FP3-66005 is one of their top-rated auto tuners for tuning Harley’s 103 engine.

We feature this product in our Harley tuner reviews because it comes packed with high-quality features and unique flash technology for easily managing your bike fuel system.

The flash technology lets you easily map your bike’s exhaust system, recalibrate engine parameters, and even perform other upgrades that you can download from the expansive library of calibrations created by Vance and Hines.

Since this is a wireless unit (Bluetooth-enabled), you won’t need to deal with any cables, and installation becomes a breeze.

This wireless connectivity lets you make all the adjustments and monitoring from the comfort of your smartphone. It works with both android and smartphone models. You’ll get to view helpful information on your smartphone, including your current speed, gear selection, cylinder head temperature, torque, RPM, etc.

Don’t forget that this unit uses a 6 pin connector. This is the same connector in FLH, FLT 2014-2020FXD, FXST, FLST, XG500, and XG750A. It works with most Harleys from 2011 to 2019. Clear installation instructions come included in the pack for easy hooking to your bike.

Highlighted features:

  • Compatible with Harley Davidson ’11-’19
  • 6-pin connector
  • Utilizes flash technology
  • Wireless (Bluetooth enabled)
  • Compatible with android and iphone

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2. Dynojet Black Power Vision PV-2B Tuner

Dynojet Black Power Vision Tuner PV-2B

Dynojet is another popular name in the auto tuners industry. It has a handful of highly-rated tuners for Harley Davidson bikes. This particular PV-2B tuner from the manufacturer has fair pricing. It will make your modified or stock bike run noticeably better.

The device presents you with a larger 3.5-inch full-color touch screen with an app-like interface, just like your smartphone display. This is a high-contrast screen, so you can easily view it even under bright sunlight.

You’ll appreciate that this device comes pre-loaded with a wide variety of tunes. This makes it ready to optimize your motorcycle out of the box. Still, the tuner will track and monitor your progress to help you produce perfectly optimized tunes for your riding style.

This is not just a high-performance tuner but is also designed to last a lifetime. It features a weather- and vibration-resistant construction to withstand all forms of abuse and harsh weather elements.

Remember, this Dynojet PV-2B tuner has a 6-pin connection and is compatible with various Harley with the same connection type. It will work with most Harley motorcycle models from 2011 to 2020, including Softails, Sportster, Dyna, Street, and Touring.

Dynojet tuner installs in a snap! The manufacturer offers you easy-to-follow videos on installing and operating this tuner. They also provide you with downloadable pdf detailing all the technical details you need to know about this tuner’s operation.

Highlighted features:

  • Fits 2011 to 2020 Harleys
  • Larger 3.5-inch touchscreen monitor
  • Up to 2GB of memory space
  • Real-tine data logging & calibration
  • Includes pre-configured tunes for easy tuning

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3. Vance & Hines Fuelpak FP3 66007 Autotuner

Vance & Hines Fuelpak FP3 Autotuner Fuel Management: Performance Tuning Software (Fits 4-Pin Harleys) 2007-2013 Touring FLH/FLT, 2007-2011 Dyna FXD, 2007-2010 Softail FXST/FLST, 2007-2013 Sportster XL

If you’re looking for the best Harley tuner for 4-pin Harleys, this is a great choice for you. This auto-tuner will perfectly fit and work with various Harley models with a 4-pin connector from 2007 to 2013. These 4-pin bike models include the Touring FLH, Dyna FXD, Softail FXST, FLST, and Sportster XL

We like that this tuner because it also comes equipped with flash technology. This allows you to recalibrate your bike engine parameters and mapping for performance upgrades, e.g., exhaust, cams, etc.

As it’s the case with the other Vance and Hines units, this model also comes with an auto-tuner feature. This facilitates highly precise, error-free for specific parameters, whether you’re tuning for different fuel grades or specific components.

Keep in mind that this tuner also wirelessly connects to your smartphone via Bluetooth. And it’s compatible with both iPhone and Android smartphones. You can easily view crucial information regarding your bike in the comfort of your screen. You can view your RPM, current speed, cylinder head temperature, gear selection, voltage, and other important info.

The unit has plug and play design which allows for quick installation and easy operation. A set of instructions is included in the package to guide you through the whole setup process.

Highlighted features:

  • Fits 2007 to 2013 Harley models
  • Autotune feature for precise tuning
  • Compatible with androids and iphone
  • Equipped with flash technology

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4. Dynojet Power Commander V 15-027

Dynojet Power Commander V 15-027 for 2002-2006 Harley Davidson Touring Models FREE MAPPING & DYNO RUN

This is the best Harley auto tuner for the owners of Harley Davidson Touring 2002-2006 models. This unit comes as the 5th generation Power Commander and boasts a reduced size compared to the PCIII model. It also comes loaded with many awesome features while featuring a pocket-friendly price tag.

The sleek-looking model will seamlessly optimize your air-fuel ratio without directly altering the ECU, making it easy to push it to its full potential. It is also easy to uninstall and revert back to the factory settings if you want to go back to your bike’s stock settings.

We also liked that this device features an increased fuel change range of -100/+250%. This is a great feature because it automatically brings the best performance and fuel efficiency to your motorcycle.

The tuner holds two maps simultaneously to let you easily switch to multiple ride options on the fly. It also boasts 10 throttle position columns to ensure you don’t sacrifice comfort for performance.

Since it comes with an easy plug and play kit, this commander V tuner will easily fit underneath your bike. Note that its compact design allows for this discreet placement on your motorcycle.

Highlighted features:

  • Fits 2002-2006 Harley Touring models
  • Offers -100/+250% fuel change range
  • Up to 10 throttle position columns
  • Compact design for a discreet setup
  • Connects to computer via USB
  • Includes cold-start feature

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5. Vance & Hines Fuelpak FP3 Fuel Management Tuner

Vance and Hines Fuel Pak FP3 Autotuner Fuel Management Fits 6-Pin Harley Models - Connects to your Smartphone - Performance Tuning Software 66005

Halfway through our Harley EFI tuner reviews, we have another great tuner from Vance and Hines. This fuel management device will work with 6-pin Harley models from 2014 to 2020 to help revolutionize your bike’s fuel management and make your bike run better.

Like the other FP3 units, this tuner will wirelessly connect to your iPhone or Android via Bluetooth. It is equipped with V&H flash technology that recalibrates your bike engine parameters.

You can easily download mappings for exhaust systems and other performance upgrades to your bike from Vance’s extensive library of calibrations.

With the autotune feature, this tuner will deliver precise tuning for specific requirements, i.e., whether you’re looking to tune for specific bike components or different fuel grades.

Once you plug in this module, you can access the Live Sensor Data on your smartphone. This will display crucial info such as speed, RPM, voltage, cylinder head temperature, etc.

Highlighted features:

  • Works with 2014-2020 Harleys with 6-pin connectors
  • Auto-tune function precise tuning
  • Utilizes flash technology
  • Wirelessly connects to your smartphone via Bluetooth
  • Compatible with both android and iphone smartphones

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6. Vance and Hines Fuelpak FP3-66007

Vance and Hines Fuelpak FP3-66007 - with Exhaust Port Gaskets

It’s Vance and Hines again! This FP3 66007 is the best fuel tuner for Harley Davidson models from 2007 to 2013. It features a 4-pin female connector, so it will work with all Harleys with a similar connector.

Because this is an auto-tuner, it will change air-to-fuel ratio many times a second—meaning your bike gets better as you ride it!

As it’s standard across all the Fuelpak FP3s, this device comes with auto tune feature. This translates to more precise and error-free tuning, whether coulure tuning for specific components of your bike or different fuel grades.

This FP3 utilizes Flash technology for recalibrating your engine parameters. The mapping for exhaust systems and other performance upgrades are downloadable from the V&H expensive library of calibrations.

With wireless Bluetooth connectivity to any android or iPhone smartphone, this device presents you with vital information about your bike straight to your smartphone screen. You’ll get live sensor data for current motorcycle speed, RPM, power, torque, gear selection, etc.

The fuel management device is plug and play, making installation super-easy and fast for you. The included set of instructions on installing it will make this whole process even easier for you.

Highlighted features:

  • Recalibrates ECM by flash tuning
  • Autotune feature ensures precise tuning
  • Displays live sensor data while riding
  • Removable from bike when not in use
  • 4-pin connector
  • Fits 2007 to 2013 Harleys

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7. Dynojet Power Commander V Autotune Kit for Harley Davidson

Dynojet Power Commander v Autotune Kit for Harley Davidson All

No matter what modifications you have to made to your bike, this auto tune kit will help you bring it all together to harmoniously run together and improve your bike’s overall performance.

This device is specially made for Harley Davidson bikes. It connects to your motorcycle’s diagnostic port via a 6-pin connector. Keep in mind that this module comes designed for use in conjunction with Power Commander V fuel tuner for Harley.

Once you install this unit on your Harley Davidson, this until will help you monitor air to fuel ratio. It will then transmit the information to Commander V tuner and automatically correct it while you’re riding your bike. Thus, you’ll be feeling the change as it happens on the fly!

Each map offered features preset air/fuel ratio target values that Dynojet finds to be the best overall settings. This means you just need to plug in this unit, and it will do the rest. Inside the box, you’ll discover 18mm O2 sensors and a power connector that easily plugs into your bike harness.

Highlighted features:

  • Made in the USA
  • Automatic fuel adjustments
  • Includes 02 sensors and power connectors
  • Independently tunes each cylinder
  • Base settings for air/fuel ratios included

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8. Screamin’ Eagle Smart Tune PRO Automatic Tuning Module

Screamin' Eagle Smart Tune PRO Automatic Tuning Module

The Screamin Eagle Smart Tune Pro module is the best EFI tuner for Harley Davidson if you’re looking for an auto tuner that won’t void your bike warranty. This unit is produced by Harley Davidson Performance Division. You can have peace of mind knowing it won’t crush your bike warranty.

Unlike other units, this device doesn’t stay permanently attached to your bike. Instead, it acts as a data port key for re-programming. In other words, this Tune Pro works with the Pro Street Tuner to automatically optimize your bike for a combination of components, performance, altitude, and even the vehicle load conditions you’re riding in.

Simply install the upgraded wideband oxygen sensors in your bike’s exhaust headers, download the calibration developed by Screamin’ Eagle engineers as a starting point, and then hit the road. This device will do the rest of the work for you!

The wideband sensors will read oxygen levels in the exhaust and automatically determine your bike’s ideal air/fuel ratio. It will also determine the spark advance as well as the timing your motorcycle needs at that moment.

For the fitment part, this module works with all Harley Touring models from 2014 to later. It also fits XL 2017 to later, Dyna FXDLS 2016-2017, and 2016-later Softail.

Highlighted features:

  • Constantly monitors your bike operating parameters
  • Uses oxygen sensors to optimize air/fuel ratio
  • Makes real-time ecm tuning adjustments
  • Guided smart tune process for easy software navigation
  • 50 us states epa compliance

9. Vance & Hines Fuelpak FP3 Autotuner

Vance & Hines Fuelpak FP3 Autotuner

Lastly, in our Harley Davidson tuners EFI reviews list, we have this Vance and Hines Fuelpack auto tuner. Like its siblings, this device is dedicated to revolutionizing your Harley Davidson fuel management. It is the ideal fit for 2011 to 2022 Harleys with 6-connector CANBus models.

Like the other FP3 models, this auto-tuner connects wirelessly (via Bluetooth) to your android or iPhone smartphone. It makes it easy for you to recalibrate a host of your engine parameters.

With access to their expansive library of calibrations developed by V&H engineers, you’ll enjoy mappings for your exhaust system as well as other performance upgrades.

Since this FP3 also comes with auto tuner feature, it atomically optimizes your bike’s air to fuel ratio. It enables your bike to run better over time.

When you plug in this tuner, you’ll enjoy live data straight on your smartphone display. Important data you’ll get include the bike speed, RPM, power, torque, fuel economy, cylinder head temperature, gear selection, voltage, etc.

Keep in mind that this unit also lets you choose from up to 3 deceleration pop reduction levels to help you deal with that often annoying sound.

Highlighted features:

  • Fits Harley 2011-2022
  • Recalibrates ECM by flash tuning
  • Autotune feature for precise tuning
  • 6-pin connector tuning device
  • Includes easy to follow installation instructions
  • Removable when autotuning or live data isn’t needed

Harley Davidson tuner comparison Table

ProductConnection typeCompatibility (years)Warranty
Vance & Hines FP3 – 66005Wireless2011 to 2019One year
Dynojet Black PowerWired2011 to 2020One year
Vance & Hines FP3 66007Wireless2007 to 2013One year
Dynojet Power Commander VWired2002-2006One year
Vance & Hines Fuelpak FP3Wireless2014 to 2020One year
Vance and Hines FP3-66007Wireless2007 to 2013One year
Dynojet Power Commander V Autotune KitWired2012 to  2020One year
Screamin’ Eagle Smart Tune PROWired2014 to 2022One year limited warranty
Vance & Hines Fuelpak FP3 AutotunerWireless2011-2022One year

What to look for before buying?

If this is your first time buying an auto tuner, this is your part. Below, we have discussed the most important factors to help you easily narrow down your options and find the best auto tuner for Harley Davidson for your unique needs and preferences.


The first thing to check in a tuner is compatibility with your specific bike model. Some tuners are designed to work with all models of bikes, while others only work with specific models. Unfortunately, installing a non-compatible model can cause problems with your fuel injection and even harm your engine. Go through the unit’s listing information to ensure it’s compatible with your bike model. You may also consult your dealer on the best tuner options to work with your specific bike.

Auto Tuner For Harley Davidson

Type of tuner

You also need to consider the type of tuner you get. There are two main types: piggyback controllers (also known as foolers) and those designed to work independently.

Auto tuners piggyback on ECU are more common, inexpensive, and easy to install. They rely on factory calibration to provide ignition and fuel maps. However, these tuners have limited adjustability.

Type of tuner

The independent units are a bit complex as they involve complete re-programming of your ECU. These units may require some technical expertise that the average riders may not have access to.

These independent tuners are ideal for bike owners who want control over their bike’s performance. These tuners cost more than piggybacks. They’re also a bit challenging to install on your bike.

Wired vs wireless units

The Harley Davidson tuners are also available in wired and wireless models. The wired options mean that you must directly connect them to your bike’s ECU and sensors.

These are great in that they provide a more stable connection. However, they may be challenging to install if your bike isn’t easy to access.

Wired vs wireless units

On the other hand, Wired tuners don’t involve the use of any cables. Instead, they wirelessly (via Bluetooth) communicate with your motorcycle’s sensors and ECU.

These are more affordable and easier to install. They’re a good choice for bikes that don’t output much power.

Ease of installation

Regardless of what type of tuner you choose, you must ensure it’s easy to install on your motorcycle. Some auto tuners for Harley Davidson easily hook to your bike system.

However, some units require you to remove wires and parts from your bike. Take your time to understand the tuner you plan to buy to ensure it fits your skill level. Doing the installation incorrectly can damage your bike engine or even the tuner itself.

Ease of installation

Ensure all the necessary tuner parts, including cables and connectors, are included in the package. Also, go through the previous user reviews to see whether previous users had any problems with the motorcycle installation.

State emission laws

Before getting an auto tuner, you also want to understand your state’s laws regarding emissions. This is especially important when the debate on the impact of emissions on the environment is high in the US.

Mind you, Harley Davidson was fined a whopping $12 million in a 2016 lawsuit. They were accused of selling super tuners, which caused their motorcycles to emit too much pollution.

Check if your state has laws that require motorcycle owners to pass inspections every year. States like California have such laws. And it’s best to get a tuner that performs in line with the set standards.

If your state has no emission laws, you go with a tuner that gives you more options/adjustability.


The EFI tuners for Harley Davidson are a costly affair. You’ll be forced to spend anywhere from $300 to $1000 or more.

Thus, we suggest you decide what you need in a tuner and then look for models within this price range that fit your needs/expectations.

Having a budget in mind will also help you narrow down your options.

Remember, what works for your fellow rider may not work for you. It all depends on what you want your tuner to do and how much you’re willing to pay.


Anything can go wrong with auto tuners, so it’s best to purchase a model with manufacturer warranty as well as a return policy in case of defective parts or damage resulting from installation.

Benefits of Tuners for Harley Davidson?

Using the best tuner for Harley Davidson brings many benefits to your motorcycle. These benefits come together to make your bike engine run better and better.

One of the top benefits of tuners is increased fuel efficiency. The auto tuner achieves this because it easily adjusts to change your Harley’s fuel injection rate depending on your roadway environment.

With increased fuel efficiency, a tuner minimizes “chugging.” It also improves throttle response time, making your bike performance smoother and minimizing tear and wear.

What tuner does Harley use?

You can use one of the top-rated fuel tuners for Harley Davidson we have just recommended in our list above. If you’re worried about voiding your bike warranty, however, you may want to stick to tuners made by Harley Davidson as they’re a safer bet.

A good example is the Screamin’ Eagle Pro Street Tuner which is proudly made by Performance Division of Harley-Davidson®. So, you can use it on your bike without fear of voiding your H-D’s warranty.


1. Why add a tuner for Harley Davidson?

You need to add a tuner to your Harley Davidson if you have done any major modifications to your bike, e.g., changing the cam or the exhaust system. These performance changes affect how the engine performs, and you need to tune it to function optimally. If you’re not sure whether your bike needs a tuner, you may consult your Harley Davidson dealer for professional help.

2. For wired auto tunes can I change the wires?

Changing the wires for wired auto tunes may be possible for some units. We recommend checking the features and specifications of a given unit to see if this is possible. And whether they have laid out the whole process on how to go about it.

3. Do Harley Davidson bikes require tuning?

Harley Davidson bikes don’t necessarily require tuning if you keep all the original manufacturer parts. However, if you make modifications to your bike’s air cleaner, exhaust, etc., tuning your bike is important to ensure optimal engine performance.

4. How do Harley Davidson Auto Tuners Work?

Most Harley Davidson tuner options simply hook to your bike’s full delivery system, helping control how much air and fuel are injected during operation. How the system is operated may differ from model to model. Some units utilize traditional analog while other uses modern touchscreen setups. An auto-tuner may initially sound intimidating, but it becomes easier to understand once you try one yourself.

5. How to Check Tuner Compatibility?

The easiest way to check Harley fuel tuner compatibility is by going through the unit’s listing info. If your motorcycle make and model is listed as one of the compatible models, then you can proceed to use the tuner on your bike without any issues.

However, if you can’t access this info or you’re still not sure about your tuner compatibility, check your bike’s owner manual to find out whether its fuel system and pipes size will fit a given tuner.

6. Will using an auto tuner void my Harley Davidson bike?

Adding a tuner that’s not a Harley Davidson programmer to your bike may crush the warranty. If your bike is under warranty and you don’t want to void it, you should only use a Harley Davidson tuner. Using tuners from different brands will most likely mess up the ECM. When you go for servicing, they’ll search their computer to discover where the problem is. They’ll not support any damage if they find you’re using a different tuner from theirs.

7. How do I connect a tuner to my Harley by myself?

To connect a tuner to your Harley Davidson bike, choose a suitable location on your bike where you can permanently and safely mount the unit. Once set in place, follow the manufacturer’s instructions to successfully install the bike to your tuner.

If you make a mistake during the installation, you could easily damage your bike engine or tuner unit. Make sure you read through all the installation steps carefully before you start the installation.

Check this video for a visual guide on how to do the installation on your own

Final words

Now you know how an auto-tuner can benefit your bike and some of the best models available for you to choose from.

Installing an auto tuner for Harley Davidson to your bike will dramatically increase your bike performance.

The best unit will give you total control over how much air and fuel goes into the motor. This assures you of smoother and more efficient rides and even increases the lifespan of your bike engine.

When choosing the perfect auto tuner for your bike, you should keep in mind that these units aren’t built the same.

To help you find the ideal unit for you, check the compatibility, type of tuner, and ease of installation. Your state emissions laws should also guide you in choosing the perfect tuner for your bike.

Our reviews above feature top-rated tuners that are highly reliable and made for performance.

Go through this list to help you narrow down your list and make it easy to find the best auto tuner for Harley Davidson that meets your unique needs and preferences.

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