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Software tune for your KTM 250 SX-F (2014) with the Keihin 81241031100. We adapt the tuning file to the original software read from your ECU – you choose the functions and how strong they are.
Motocross
KTM does not publish exact power figures for its competition engines – including those in the Husaberg and Husqvarna models. The figures are guide values for the unrestricted stock output from dyno tests and the motoring press, or from the identical engine.
Stock 42 hp / 27 Nm → with tune approx. 44 hp / 28 Nm
The tuning curve shows typical values (+4 % in the mid and upper rev range) and is not a measurement of your bike. How much you actually gain depends on its starting point: restricted homologation or open, exhaust, air filter.
Stock curve: typical shape calculated from the peak figures on this page (42 hp, 27 Nm) – there is no dyno curve for this model.
Pops & bangs
Pops and crackles when you roll off the throttle – via adapted ignition on the overrun.
Power increase
Reworked ignition and injection maps for more power and sharper response – tuned to your bike's original software.
Party mode (flame limiter)
At the rev limiter the spark cuts out while fuel keeps flowing – bangs and flames from the exhaust. The stock fuel cut stays above it as a safety net.
Multi-map – spread over 4 maps
Spread the options freely over all 4 maps and switch with a map switch – e.g. map 1 stock, map 2 power, map 4 party mode.
Map switch in development, available from mid-October – pre-order now, we send it to you for retrofitting. Stealth: hidden in the fairing, 4-way rotary switch, not waterproof. Clean: on the handlebar, aluminium, 2 buttons, IP67. KTM’s stock switch (part number 77239974200) works too. Coming soon as well: switching maps from your smartphone.
Ship in the ECU
You send in the ECU, we send it back programmed – about 3–7 days by post.
Guide: removing & packing the ECUOn site with us
In Stödtlen, Germany – you pick your preferred date at checkout.
Motorsport application – not intended for use on public roads. Learn more