@havinnoj ....Until a few days ago neither did I..... Apparently they know what goes wrong with the OEM CDI and they fix it and tell you what caused it so it doesn't happen again.....I still think a lot of CDI burn out is caused by a bad ground causing a short or not running the voltage regulator and the CDI not being able to handle the higher voltage.
I still can't understand why there are so many aftermarket CDI's available.....but they're all Chinese junk! Why can't a proper CDI be made for the TRX250R
The Aftermarket CDI's for the Snowmobile Industry work fine