wat up i need a cdi box for a 250ex if u hav any help just feel free 2 replie
the reason for the cdi box is my tires (razrs) are making me loose top end but i equaled it out by taking out the spark arrester some how it made the bike faster don't ask me how but ya i need to find a company tht makes a cdi box for my quad can make one myself i'm not good wit electronics

 

try magicracing.com they are pretty cheap thats where im gettin mine u should be able to get one for like 60$

 

I just got a performance CDI box from A guy on EBay. It is a Hot Shot and I got it for $80 to my door.
This guy has an EBay store, sledpartsguy is his name.

 

thanxs for the replies