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$129.00 $99.95

5.0 average, based on 51 reviews

Manufacturer: Blais Racing

Product Information


Please read everything below before ordering!  We cannot do 2021 and newer models as the programming has changed and our software no longer works.  We sell the Vortex ECU for 2021-2022 models.

This service is for 2011-20 KTM SXF/XCF and 2014-2020 FC/FX/FS Husqvarna Closed Course 4-stroke Fuel Injected MX bikes!  Only works for KTM SXF/XCF and Husqvarna FC/FX/FS Models!  With our ECU Tuning we are able to reduce Flameouts by about 50% normally.

This is a Re-Flash/ Tuning service that we perform on your Stock KTM & Husqvarna ECU that must be shipped to us here after ordering! I also recommend our 7 Ounce Clutch weight also for more tractable power and to reduce flameouts.


I have really clean ECU settings for all the KTM SX-F/XC-F and Husqvarna FC/FX/FS models.  When Re-Flashing your KTM or Husqvarna ECU we are making changes to fueling, timing, and Accelerator pump fueling.  The biggest issue with all the KTM and Husqvarna models, is them not getting enough fuel down low when you first crack the throttle.  This is the main root of the flameout issues.  When we Re-Tune your ECU we fix this problem along with cleaning up how the bike runs all the way through the powerband.  The software we use allows us to fine tune the ECU program in all throttle positions and RPM's.  Try it out for 30 days and if your not happy we will put it back to stock and give your money back.


KTM & Huskys with Map Switch and TC on the handlebars:  Your Maps are only different ignition maps.  My fueling changes affect everything while my ignition changes affect Map 1.  Map 2 (aggressive map) adds a preset amount of ignition timing to whatever is installed in Map 1.  TC works the same as before by detuning the ignition timing.



We can do the KTM EXC/XC-W and Husqvarna FE models below if you already have an unlocked ECU with the EURO Map Installed from your dealer before they were locked out of doing this in 2018. Even with the EURO map your 2017-19 KTM/Husqvarna EXC/FE 250/350450/500/501 model bikes will be in the neighborhood of 16:1 AFR which is in the danger zone at 8000 + RPM.  Our setup is also more performance oriented and will be another 10% jump in power over the standard EURO mapping. If you dont know what the EURO map is then you dont have it in your bike and I cannot make any changes to your ECU.  If you have a stock Map on your FE or EXC/ XC-W I can't do anything with it here.


2012-19 KTM 250/350/450/500 EXC/EXC-F/ XCF-W Models (Must have EURO map already installed from your dealer before they were locked out in 2018)


2014-19 HUSQVARNA FE 250/350/450/501 Models (Must have EURO map installed already from your dealer before they were locked out in 2018)

Please specify in the notes what type of power you are looking for.  More agressive, less agressive.


I can make timing adjustments, Acceleration fuel changes, and general fuel changes to all RPM ranges.  I have very close settings for all these bikes. 


After purchasing online you will receive an email with shipping details from us.  You will include all your information in the box along with exact year and model of your bike.  You will ship your ECU directly to us and we will turn around in 1 day with the Custom Map installed for your exact year and bike model. We recommend you insure and require signature for your package.


This modification is 100% For Closed Course Racing Use only. Not Intended for Street Use!  Does not conform to Carb/ EPA laws and regulations and is not legal for use upon a highway. By ordering this product you agree to these terms.


We recommend shipping by Priority Mail for quickest service normally 2-3 days across the country.  We will return ship your ECU by Priority Mail with $100 Insurance. No Expections!  If you order ECU mapping, then want a Paypal refund you agree to a $25 paperwork processing charge or a full store credit refund.  Please be sure before ordering and email for any questions.


For 2009-2019 CRF250R/RX & CRF450R/RX ECU Mapping Click Here!

Check out ourKTM/ Husqvarna Block Off Kits!

VORTEX RACING ECU FOR 2017-19 KTM 250/350/450/500 EXC, HUSQVARNA FE 250/350/450/501 MODELS

FMF 4.1 Slip on Exhaust for 2017-19 KTM & Husqvarna's in stock!

2016-2019 Bullet Proof Design Radiator Guards

2012-2019 Bullet Proof Designs Linkage Guard

2017-19 KTM 450/ 500 EXC-F & Husqvarna FE450/ 501 3 Piece Thermostat Bypass Samco Sport Silicone Hose Kit

Samco Sport Hose Kit for 2017-19 KTM 250/350 EXC-F/XC-W/SX-F/XC-F & 17-19 HUSQVARNA FC/FE 250/350 Thermostat bypass





Product Code: ECU MAPPING

Customer Reviews

[1]23>11View AllAverage Rating: 5

Blown Away!

I received my ecu back today after having you guys tune it. I went for a short ride and I am blown away! It’s like a completely different bike! Not even close to stalling or wanting to fall on its face. It’s faster and more responsive! Thanks a million, you guys rock. Rory

RORY TIGHE :: 11 May 2023, 23:25

500 EXC-f ECU Reflash

My 2019 had the Euro tune when I bought it in 2021, and although I don't have dyno numbers before or after, the bike feels smoother and more responsive after the reflash. If you have an ECU that is unlocked, I recommend it.

David Davis :: 26 Sep 2021, 19:32


I had my KTM 250 SXF ECU tuned a few months ago, and all I can say is WOW! Amazing job, I am absolutely thrilled with the bike. At times in tight singletrack it's too much in map 2!! Almost rides like a 350 now.

LOGAN BOETTCHER :: 21 Jun 2021, 19:01

So Good!

I went for a ride for the first time with the new ECU mapping on my 2017 KTM XC-F. It's like a different bike, what a difference. It had more pop and responsiveness to the throttle. It chugged down low when needed on a hill climb and exploded out of turns. It is an adjustment, where I used to ride in 2nd to 3rd gear I'm now in 3rd to 4th gear and it is so much more responsive I had to ease back to acclimate to it. It pulls the front wheel up with ease for small obstacles. Truly incredible the difference. I really can't express what a difference this adjustment made and this is coming from someone who was very skeptical but was also very frustrated with the stalling/flameouts. It really gave me a new found freedom that that was no longer an issue. Somewhere on your site it says the re-mapping reduces flameouts by 50%, I would say it probably reduces them by much more but I'll have to just keep riding to get better stats.

JIM SYKORA :: 7 Jun 2021, 16:47

Great Improvement

2013 KTM XC-F, Vertex 14.1 high compression piston, hotcams intake cam, full FMF 4.1 exhaust. Used primarily for single-track woods riding. The new fuel mapping has improved the bike tremendously. The bike is much easier to ride slow, it will chug along without slipping the clutch much better now, and when you do get on the power the delivery feels much smoother. I don't feel like the bike is trying to kill me at every chance anymore. Still just as fast as before, just easier to manage. Also, nearly zero back-firing now. Highly recommend.

Alex L :: 5 Apr 2021, 18:16

[1]23>11View AllWrite a review


California Cancer and Reproductive Harm WarningWarning: cancer and Reproductive Harm -

These warnings are not an indication that these products are violating any safety standards or regulations.

However, as our products might be sold in the state of California, we are legally obliged to inform customers about the potential presence of these chemicals in our products.


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