[t-rex]

looking into a procom performance cdi box for my 07 250ex and want to know do i need to change anything or just switch and ride?and if i dont after a while will it hurt anything?

 

[Billy250X]

Nope just buy it plug it in place of the old cdi and your good to go.

 

[TRX2fiveO]

Agree^^^^ but unhook the battery first..

 

[t-rex]

good to know since i bought it already but its amr racing.gotta do something to get some cheap performance for now.

 

[Billy250X]

Good luck man.Hope it really improves it like they say.