Why Reflash Your Factory ECU
Reflashing your factory TPI ECU is the most cost effective way to improve the performance of your KTM, Husqvarna, or GasGas 125-300cc two stroke.

By correcting the air/fuel ratio (lean spots and rich spots), you will see up to a 50% performance increase throughout parts of the torque curve, improve response, and get the clean running characteristics you desire.
Oil management is improved to provide additional lubrication and extend your engine’s service life.
What is the Process?
The ECU Reflashing process is simple:
- Place your order and Slavens Racing will email you a prepaid shipping label
- Unplug your ECU, send it into Slavens Racing
- Your ECU will be remapped and turned around within 48 hours
- Install and go ride
Maps & Power Characteristics
Your ECU will be returned with two maps
- Best overall power
- Softer power delivery with an emphasis on low and mid-range grunt
You will experience greatly improved low end grunt for pulling a taller gear and lugging and a lower RPM.
Top end performance will be improved with mapping tuned for maximum overrev.
Compatibility
Available For:
`18-22 KTM 250/300 XC/XC-W/EXC TPI Models
`23 KTM 250/300 XC-W/EXC TPI
`20-23 KTM 150 XCW
`18-22 Husqvarna TE/TX 250i/300i
`23 Husqvarna TE 250i/300i
`20-23 Husqvarna TE 150i
`21-23 GasGas EC/EX 250/300
The Slavens EZ ECU Reflash is compatible with many OEM or Aftermaket parts:
OEM or Sicass map switch
OEM or High Compression Heads
OEM, FMF, Pro Circuit, Bills, DEP and Scalvini Exhaust Systems
[…] and most affordable tuning option is sending in your KTM, Husqvarna, or GasGas TPI ECU for a Slavens Mule EZ ECU Reflash. This $375 option includes two maps which improve the smoothness and power delivery as well as […]