Just what the title reads. Post comments if you want to. Thanks.
Pro Com, Big Gun, Rick's, Other.
They all work. They change the timing curves and rev limites. A buddy gave me one for my 400 but I took it off it raised the rpms and sounded to high. My quad is stock and its reliable and thats what I like. Look up in cheapcycle parts or motosport to buy the part. They have good prices.
POLL: Which CDI/Rev box do you have or recommend for 250EX/300EX
