what cdi's work in winter?

[cals400ex]

i am looking at a tc and the gt rev boxes. i hear both of them enable you to start the bike in winter without any problems? does anyone know if there is any difference in the boxes? i was thinking the tc raised the rev limit by 2K but i am not sure of that. any reason to buy one over the other? any suggestions would be great. thanks

[RED121572]

Ive got one of those XR250 CDI's. I never had any problems with that one. I ran it on my machine only for a short time, cause my motor didnt like the extra 1,000 RPMs. (floating valves)

[howboutchaw]

Well I know the white brothers box is junk!!!

I got sick of push starting my ex so I put a stock box back on a damm it starts a lot easyier.

This is after I tryed a new battery and cables.:(

The only bad thing is I lost a noticable amount of high end snap.
If anybody knows of a box that will start like the stock one and still let the stage two hot cams do it's work on the high rpms I would buy it today.