TSP TBI Power Kit w/ECU Reflash – 2024+ KTM/Husky/Gas Gas 250cc XC-W, TE and EC TBI Models

The TSP TBI Power Kit with ECU Reflash for 2024+ KTM/Husky/Gas Gas 250cc XC-W/TE/EC TBI (throttle body injection) includes a billet TSP head (cap and insert), reflash of your stock ECU with improved fuel maps, advanced ignition, more refined power valve settings, increased oil, a head O-ring & washer kit, and an NGK spark plug. TSP Power Kits offer the best performance gains for all late model fuel injected two strokes.

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TSP TBI Power Kit w/ECU Reflash – 2024+ KTM/Husky/Gas Gas 250cc XC-W, TE and EC TBI Models

This package fits all 2024 KTM 250 XC-W, Husky 250 TE and Gas Gas EC 250 models with the new 250 TBI (Throttle body injection) engine.

The models include:

  • KTM 250 XC-W ’24-on
  • Husky TE 250 ’24-on
  • GasGas EC 250 ’24-on

This is not designed for XC/SX/TC/TX/MC/EX Models.

This 2024-on 250 XC-W package includes:

  • A Billet TSP Head (Cap and Insert). We offer several different compression ratios for different riding conditions.
  • A TSP ECU Re-flash
  • Head O-ring & Washer Kit
  • New Iridium Spark plug

The 2024-on KTM 250 XC-W Bikes are OK off the factory floor, but like previous years of 250 XC-W bikes, they are quite soft at part throttle and respond extremely well to some sensible mods. Our head and ECU tune combination make a massive difference to the feel of these bikes, making them ride more like a ‘280’ than a 250. Once setup right this bike will do anything a 300 will do, but it feels more nimble, more revvy and isn’t as tiring to ride. At TSP we have often said that most riders would be better off on a well tuned 250 instead of a 300, and the new 2024-on 250 XC-W is no exception.

This package makes a huge difference to the 250 TBI over stock, with some key features being:

  • Drastically improved throttle response throughout the entire RPM range
  • More power everywhere, especially through the bottom/mid. This makes the bike much easier to ride in most conditions.
  • 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 with a more linear power delivery.
  • Better fueling; some areas are crisper than stock for better throttle response, and some areas are richer for improved reliability.
  • Mapping changes include fuel, ignition power valve and oil settings for both the Green and White maps (Downloadable with the ERM)

As usual we offer a range of cylinder head options for this Power Kit:

  • MEDIUM COMPRESSION: The new 250 XC-W medium comp insert is higher compression than stock with a much better overall design. It gives the engine a crisper, torquier feel and is suited to trail riders or racers. It is the best design to use for deep sand riding, or prolonged high speed riding, or for those riders who don’t need as much power gain as the High Comp head offers.
  • HIGH COMPRESSION: The new 250 XC-W High comp design is higher compression than stock, and about as high as you can safely run at sea level with 91 octane pump fuel. It is the best pick for the majority of riders and offers big gains in power from bottom to top. Riders using this head design with a TSP ECU tune will feel a huge difference to performance over stock. Suitable from sea level up, using normal pump 91 octane fuel.

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

Note: In order for us to reflash your 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 ECU without the VIN #.

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

YearMakeEngine CCModel
YearMakeEngine CCModel
2024Gas Gas250EC TBI
2024Husqvarna250TE TBI
2024KTM250XC-W TBI

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