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The Keihin EFI control unit with KTM part number 79641031000 (“ECU EFI”) replaces the older number 79041031000, which some models were fitted with from the factory.
Same control unit, different software
The control unit is the same on every model listed, but the software (maps) differs by model and model year. That is why every tuning file is adapted to the original software read from your bike.
| Brand | Model | Model years | Displacement | Power | Torque | Note |
|---|---|---|---|---|---|---|
| KTM | 250 SX-F | 2016–2024 | 249.9 cc | approx. 43 hp | approx. 27 Nm | Motocross, map switch fitted from the factory |
| KTM | 250 XC-F | 2016–2024 | 249.9 cc | approx. 43 hp | approx. 27 Nm | Cross-country, same engine as the SX-F; Figures from the identical engine of the KTM 250 SX-F |
| KTM | 350 SX-F | 2016–2024 | 349.7 cc | approx. 51 hp | approx. 35 Nm | Motocross, map switch fitted from the factory |
| KTM | 350 XC-F | 2016–2024 | 349.7 cc | approx. 51 hp | approx. 36 Nm | Cross-country, same engine as the SX-F |
| KTM | 450 SX-F | 2016–2024 | 449.9 cc | approx. 57 hp | approx. 47 Nm | Motocross, incl. Factory Edition, map switch fitted from the factory |
| KTM | 450 XC-F | 2016–2024 | 449.9 cc | approx. 57 hp | approx. 47 Nm | Cross-country, same engine as the SX-F; Figures from the identical engine of the KTM 450 SX-F |
| Husqvarna | FC 250 | 2016–2024 | 249.9 cc | approx. 43 hp | approx. 27 Nm | Motocross, map switch fitted from the factory |
| Husqvarna | FC 350 | 2016–2024 | 349.7 cc | approx. 52 hp | approx. 37 Nm | Motocross, map switch fitted from the factory |
| Husqvarna | FC 450 | 2016–2024 | 449.9 cc | approx. 54 hp | approx. 46 Nm | Motocross, incl. Rockstar Edition, map switch fitted from the factory |
| Husqvarna | FX 350 | 2017–2023 | 349.7 cc | approx. 52 hp | approx. 37 Nm | Cross-country, same engine as the FC; Figures from the identical engine of the Husqvarna FC 350 |
| Husqvarna | FX 450 | 2017–2024 | 449.9 cc | approx. 54 hp | approx. 46 Nm | Cross-country, same engine as the FC; Figures from the identical engine of the Husqvarna FC 450 |
| GasGas | MC 250F | 2021–2024 | 249.9 cc | approx. 41 hp | approx. 26 Nm | Motocross, map switch fitted from the factory |
| GasGas | MC 350F | 2022–2024 | 349.7 cc | approx. 51 hp | approx. 35 Nm | Motocross, map switch fitted from the factory; Figures from the identical engine of the KTM 350 SX-F |
| GasGas | MC 450F | 2021–2024 | 449.9 cc | approx. 55 hp | approx. 46 Nm | Motocross, map switch fitted from the factory |
| GasGas | EX 250F | 2021–2024 | 249.9 cc | approx. 41 hp | approx. 26 Nm | Cross-country, same engine as the MC; Figures from the identical engine of the GasGas MC 250F |
| GasGas | EX 350F | 2021–2024 | 349.7 cc | approx. 51 hp | approx. 35 Nm | Cross-country, same engine as the MC; Figures from the identical engine of the KTM 350 SX-F |
| GasGas | EX 450F | 2021–2024 | 449.9 cc | approx. 55 hp | approx. 46 Nm | Cross-country, same engine as the MC; Figures from the identical engine of the GasGas MC 450F |
Motocross, map switch fitted from the factory
Cross-country, same engine as the SX-F; Figures from the identical engine of the KTM 250 SX-F
Motocross, map switch fitted from the factory
Cross-country, same engine as the SX-F
Motocross, incl. Factory Edition, map switch fitted from the factory
Cross-country, same engine as the SX-F; Figures from the identical engine of the KTM 450 SX-F
Motocross, map switch fitted from the factory
Motocross, map switch fitted from the factory
Motocross, incl. Rockstar Edition, map switch fitted from the factory
Cross-country, same engine as the FC; Figures from the identical engine of the Husqvarna FC 350
Cross-country, same engine as the FC; Figures from the identical engine of the Husqvarna FC 450
Motocross, map switch fitted from the factory
Motocross, map switch fitted from the factory; Figures from the identical engine of the KTM 350 SX-F
Motocross, map switch fitted from the factory
Cross-country, same engine as the MC; Figures from the identical engine of the GasGas MC 250F
Cross-country, same engine as the MC; Figures from the identical engine of the KTM 350 SX-F
Cross-country, same engine as the MC; Figures from the identical engine of the GasGas MC 450F
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. Many of these enduros were registered in Germany in restricted form; the registered output is listed in the vehicle registration certificate (field P.2) and is sometimes considerably lower.
Not compatible
The following use a different control unit and are not covered by this page. Please check before sending an inquiry:
Is your model listed? Put your tune together and order online from €150, on site with us or by shipping in the ECU.