could you guys give me all the makers of cdi's for the 400ex please?

 

White Brother and Big Gun off the top of my head. But why are you wanting a new cdi box? People tell me it is just a waste of money and makes it hard to start unless other aftermarket work is done.

 

actually i'm trying to get one for my wife's 250ex. i want to call all the manufactures of the ones that make it for the 400ex and see if there planning on making one or if they will make me one.

 

curtis sparks also makes them for the 400ex. the big gun is supposed to make 2 hp more than the white brothers box. i don't know if that is true or not. the do change the spark curves on the bikes. my friend gained a bit of top end on his 400ex with the sparks box. i just want to know if the big gun or sparks is a better one.

 

If your looking for more spark and a huge power boost. Take a look at MSD or the new DYNA F2. thats what I was suggested to. You will have to jet and pipe if you want to notice a real big gain.