TSP ECU Re-flash – KTM & Husky 250 TBI

The TSP ECU tune is designed for KTM, Husky, and Gas Gas 250 TBI 2023+ Models with stock or modified heads and ignition. Improvements are made by modifying the stock fuel, ignition and power valve maps.


Your bike's VIN# is needed for all ECU Re-flashes. Typically 17 characters and can be found on the bike's frame steering tube or registration/pink slip.

Model Validator - Please enter your bike info before adding to cart

SKU: ECU.FLSH.250TBI.23on Category:


This product fits 2023+ KTM, Husky, and Gas Gas 250 models with the TBI (Throttle body injection) engine.

The models include:

  • 2023+ KTM SX/XC 250 TBI
  • 2023+ Husky TX 250 TBI
  • 2024+ Gas Gas EX TBI

This listing does not fit EXC/XC-W/TE/EC models.

The ECU tune makes a huge difference to the 250TBI over stock, with some key features being:

  • Drastically improved throttle response throughout the whole RPM range
  • Both Green & White maps are tuned and the stock map switch works like normal to select between the customized maps. The Green map is Hard/Aggressive, the White map is Safer/Softer.
  • Smoother throttle response
  • Much better part throttle and low rpm power
  • Better fueling; some areas are crisper than stock for better throttle response, and some areas are richer for improved reliability.
  • ECU mapping changes include fuel, ignition and power valve settings for both the Green and White maps.
  • The ECU tune has been designed to work best with our TSP heads.

Although the ECU tune can be done on it’s own, doing this ECU upgrade as a package with our TSP Insert/Head at the same time will offer much better performance gains over stock, and we strongly advise going for our full TBI power kit for the best experience. You can view this kit in our ‘Power kits – TBI Section.

All TSP mods are designed and dyno tested in-house at TSP so you can be sure you’re getting reliable performance and quality products.

Note: In order for us to reflash your TBI ECU, please ship us your ECU with a copy of a work order form, and be sure to include your bike’s VIN # on the work order form.  We are not able to flash your TBI ECU without the VIN #.

Below are the make(s) and model(s) that will fit this part.

YearMakeEngine CCModel
YearMakeEngine CCModel
2023Husqvarna250TC TBI
2023Husqvarna250TX TBI
2023KTM250SX TBI
2023KTM250XC TBI
2024Gas Gas250EX TBI
2024Gas Gas250MC TBI
2024Husqvarna250TC TBI
2024Husqvarna250TX TBI
2024KTM250SX TBI
2024KTM250XC TBI

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