Husqvarna FE 501 2024 to 2026 - FLAWLESS ECU Performance Flash

More power and torque?

With our FLAWLESS ECU Performance Flash, we individually optimize the engine control unit of your Husqvarna FE 501 – for more power, more torque, improved handling, and numerous additional features.

And all this without an additional control unit or external tuning box – exclusively through targeted optimization of your original ECU.

• Performance increase: Depending on the setup, our FLAWLESS ECU Performance Flash achieves approx. +3–4 HP and +4–6 Nm of torque. In conjunction with our optional FLAWLESS Performance Kit, even +7–8 HP peak power is possible.

In addition to the pure power increase, we optimize the power delivery across the entire rev range and ensure more homogeneous, smoother, and more powerful handling.

We individually adapt the injection maps to your installed setup and optimize the air-fuel ratio. This can reduce exhaust gas temperatures and thermally relieve the engine, exhaust valves, and cylinder head.

• FLAWLESS Performance Kit – Optional: When developing our FLAWLESS Performance Kit for your Husqvarna FE 501, the focus was on getting the maximum performance and rideability out of your motorcycle with the least possible effort.

Thanks to our specially developed intake in conjunction with an MWR sports foam air filter, we have achieved exactly this goal:

• +7–8 HP peak power
• Longer power plateau
• More usable power across the entire rev range
• More powerful and sportier riding experience

In combination with our FLAWLESS ECU Performance Flash, you get the FLAWLESS Performance Kit for your Husqvarna FE 501 for only €120.00.

The discount will be automatically deducted in the shopping cart.

• CAN-Bus Map Switch Retrofit: For using Map 3 and other additional features, the new CAN-Bus Map Switch is required.

If you select the retrofit, we will directly supply the matching map switch along with the necessary adapter.

The map switch does not need to be ordered separately.

• FLAWLESS Power Mapswitch: Full attack at the touch of a button?

With our FLAWLESS Power Mapswitch, you can switch between 2 maps or 3 maps with appropriate configuration while riding.

For example, you can store the standard mapping or the restricted configuration on Map 1 and the FLAWLESS ECU Performance Flash with all desired functions on Map 2.

This allows you to switch between different mappings on-the-ride.

You can select exactly which functions can be controlled via the map switch directly in the configurator.

• FLAWLESS Gearswitch: With the FLAWLESS Gearswitch, you can specifically block additional maps and only enable them via a defined starting procedure.

When starting the motorcycle normally, only Map 1 is active.

However, if you start your motorcycle in 2nd gear, map selection is re-enabled, and you can then switch between the available maps as usual.

You can activate the FLAWLESS Gearswitch directly in the configurator.

• FLAWLESS Startup Map: With the FLAWLESS Startup Map, you can define which map your motorcycle automatically starts in after each start.

For example, if you select "Start in Map 1", your bike will always start in Map 1 – regardless of which map was active before switching off.

• FLAWLESS Quickshifter GP: With our exclusive FLAWLESS Quickshifter GP, we enable precise and fast upshifts without clutch actuation.

Thanks to our specially developed custom code in the engine control unit, the quickshifter works significantly more precisely and already functions when shifting from 1st to 2nd gear.

Our FLAWLESS Quickshifter GP works with the existing gear position sensor and uses the reference values already learned in the control unit. This means that no manual reading or individual adjustment of these values is necessary.

Due to the closed-loop system of our code, the ignition is only released again once the gear change is completely finished.

The interruption time adaptively adjusts to the respective shifting process. This prevents the ignition from being reactivated too early, which can happen with systems with fixed interruption times.

We can retrofit the quickshifter on all models from 2017 onwards.

No additional sensor needs to be installed for this.

Optionally, we also offer the popular shift acoustics or shift pop.

In the configurator, you can select on which map the shift acoustics should be active – and on which not.

• FLAWLESS Hardcut Limiter: With the FLAWLESS Hardcut Limiter, we activate an additional 2-step limiter.

You can directly select in the configurator when or on which map the Hardcut Limiter should be active.

Depending on the setup, the Hardcut Limiter provides particularly aggressive acoustics and can produce visible flames from the exhaust.

• FLAWLESS Launch Control: With our FLAWLESS Launch Control, we bring the start function known from the SX-F and FC models to your Husqvarna FE 501.

Optionally, we also offer Launch Control with acoustic function.

During the starting phase, the Hardcut Limiter is active and provides aggressive hardcut acoustics and – depending on the setup – visible flames.

As soon as you release the clutch, you can continue the starting process as usual.

• Pops & Bangs: Give your Husqvarna FE 501 the final acoustic fine-tuning.

Through our software optimization, we can individually adjust the overrun fuel cut to your setup and preferences.

In addition, we can specifically assign the Pops & Bangs function to individual maps.

For example, you can have a subtle adjustment on one map and activate the full acoustics on another map.

Please indicate in the comment field at checkout which setup you are running. It is important to specify which exhaust silencer (Akrapovic, FMF, ...), which manifold, and which air filter (K&N sports air filter, BMC, Rade Garage, ...) you have installed.

Procedure:
1. Order the FLAWLESS ECU Performance Flash or your ECU Software Optimization for your Husqvarna FE 501 with the desired options.
2. Send your control unit or ECU well-packaged to us (FLAWLESS Industries - Pilatusring 20, 91353 Hausen, Germany).
3. We will process the software of your control unit on the day of arrival and usually send it back to you within 24 hours.
4. Unpack, connect, and ride.

Important
To offer you this service, you need to send us your removed control unit from your vehicle. As soon as we receive it, we will individually adapt your FLAWLESS ECU Performance Flash. We usually send your control unit with the modified software back to you within 24 hours so that you can reinstall it as quickly as possible.
To achieve the stated performance, it is necessary to use an accessory exhaust silencer (Akrapovic, FMF, etc.).
Excessive use of the Hardcut Limiter can lead to engine damage.
The control unit will not be damaged or opened. The FLAWLESS ECU Performance Flash is not externally visible. KTM testers work without restrictions. The software number remains unchanged.

- Suitable for Husqvarna FE 501 models from 2024 to 2026
- Simple and fast service
- Maximum performance increase and improved handling

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