Best Harley Tuner [Till 2022] – Auto Air & Fuel Adjustment

Harley, Tuner

Harley Davidson has immense popularity, especially throughout North America. Certainly, it’s one of the most iconic motorcycle brands ever. Anyway, you’re not reading this article to know what’s so great about them. You’re here because you want to find out the best Harley Tuner for your beautiful bike. Many factors are involved in deciding, and after all considerations, here we’ve got a list of the top tuners suitable for your Harley.

Best Overall – Vance & Hines FuelPak FP3

Runner Up – Dynojet-Harley PV-1B

Best for Harley M8 Engine – ThunderMax M8 Auto Tuner

Best Tuner for Harley 103 Engine – Vance & Hines 66005 or Dynojet PV-2B

Best EFI Tuner for Harley Davidson – Kuryakyn Tuning Tool

Best ECM Tuner for Harley Davidson – VHP-66005A or Thundermax ECM

Why We Selected Above Tuners?

There are numerous tuners for Harley bikes – it’s tough to select the most efficient and suitable options, but we did. Lots of different features can exist that one can have in tuning systems. Of course, we considered all those things when choosing the top tuners for Harley, as listed above.

Normally, the above-selected tuners are used by professional riders and racing teams. The reason for that is the simple fact that they’re of high quality and provide a lot of functionality and power. That’s why we think they’re worth mentioning here. Therefore, if you know that one of them meets your requirements, then go for it!

Functions of a Harley Motorcycle Tuner

A motorcycle tuner is a small accessory that you can attach to your motorcycle. It’s placed between the engine and the carburetor. One of its main functions is to make adjustments to the air-fuel mixture inside your engine. Harley Davidson motorcycles tuners work by adjusting the fuel and air mixture inside your engine.

That is done automatically, depending on the type of tuning system that you have installed. Electronic Harley Tuner automatically increases or decreases the amount of oxygen in your exhaust gas flow. In turn, the air/fuel ratio will be adjusted accordingly. That’s why this accessory will come in handy for you if you own a Harley.

Does a Harley Really Need a Tuner?

Tuning systems are necessary for all kinds of bikes. Of course, the stock model of Harley motorcycles is good enough for most people. But, if you want to have a better engine performance and fuel economy, then having one of the above tuners will benefit you. Some people think that tuners are of less or no necessity, but we assure you they are needed to have the highest performance on your Harley.

Best Harley Tuners – Top Table for All H-D

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Top Brands – Who Makes the Best Tuner for Harley Davidson?

Many brands make tuning systems for Harley bikes. Some of them produce tuners only with racing in mind, while others can do it for both the race track and the street. Among all, the notable brands currently on the market include:

  • Vance & Hines
  • Kuryakyn
  • VHP
  • Dynojet
  • ThunderMax

Best Air & Fuel Auto Tuner for Harley – Buying Factors

Of course, there are many things that one may take into account before trying out any tuner. But we prepared a short buying guide on the key factors to consider when choosing an air and fuel tuner for your Harley Davidson motorcycle to make things easier for you.


You should always consider the price of any product that you want to buy. We all know that the best products aren’t always those that have a high price. That’s why we advise you to be smart. Do some research before making any major decisions regarding your Harley Davidson motorcycle tuning system or accessory.


Of course, the quality of your product is the most important thing that you should consider before buying any tuning system for your motorcycle. Said that “you get what you spend on.” So if you spend a lot of money on a particular product, it’s more likely to have better quality than some other cheap accessory.


A good tuner will need to be correctly installed for you to benefit from all its features and functions. That’s one of the main reasons we advise you not to buy any random part without first researching how exactly you can install that. Try asking around or searching through dedicated forums; many people can help you out.

Pricing – Harley Auto Tuners

There are many different types of auto tuners in today’s market. That is why it is crucial to know the exact price range for any particular product. For example, most models can cost around $150 to $130. Some can even go up more than that, depending on the brand and the model that you choose.

Air & Fuel Tuning – Techniques and Tips

Tuning your Harley Davidson motorcycle is a more complicated process than it might seem at first glance. That’s why we advise you always to follow the instructions and read all the warnings and safety notices that come with each unit.

Before trying to tune your motorcycle, you need to know how this accessory works. The best way to learn something is by example, so here are some of the most common air and fuel tuning techniques for Harley Davidson motorcycles:

  1. Installing a new replacement exhaust part can help you increase both power and performance on your vehicle. In general, a new exhaust can add an extra 3 or more horsepower to your motorcycle, which is a significant gain.
  2. The air and fuel controller comes with a simple code system that you will need to understand before using it on your Harley Davidson motorcycle. Each tuner has a specific code number that you need to know if you don’t want it to drain your battery.
  3. The air and fuel controller can be useful if you want to increase the overall performance of your Harley Davidson motorcycle. You can do it by increasing both power and torque or just one of them, depending on what you think is best for your vehicle.
  4. Bike owners know that green stands for throttle position sensor, yellow is for oxygen sensors, and red means that you need to check the vehicle’s fuel pump. If your tuner has any other color, you can just look up what it means in the manual or find out more about it. That way, you will avoid damaging your motorcycle parts.
  5. Installing a good-performance air filter can help you solve many issues with your Harley Davidson motorcycle. A poorly performing air filter can reduce the overall performance of your vehicle, which will also cause damage to the pistons and valves. Replacing it with a new high-performance filter might be all you need to do to ensure that your engine is working correctly again.

Cost for a Harley Tune-Up (Dyno-Tuning) in a Shop

The national average cost of a Harley Davidson Tune-Up (or Dyno-Tuning) from a local shop is around $499.00. Some shops charge as little as $300.00, while others can charge more than $700, based on the extent of the work and where you live. You can find a reputable local shop near you by doing a quick Google search for “Harley Davidson Tune-Up (Dyno-Tuning).

How Long Does a Harley Need to be Tuned?

The average Harley Tune-Up (or Dyno-Tuning) Service should only take between 3 to 4 hours. The actual time can vary depending on what parts need to be replaced and how long it takes for the shop to order new parts. In some cases, a Tune-Up can take as long as 5 hours to complete.

Concluding Remarks

When tuning your Harley Davidson motorcycle, you need to know that there is no single universal rule. Instead, the best thing you can do is try and find a reliable air and fuel controller and learn as much as possible about auto-tuning.

Each model has its advantages and disadvantages, which means that price isn’t always the best quality indicator. There are also many new technologies that you can use to make your motorcycle better, but only if you know what they do and how they work.

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