650R performance cdi boxes??

Has anyone installed an aftermarket performance cdi box on a 650R? If so, what kind of feedback can you give me!? I have an uncorked '04 and am debating installing one of these performance boxes, but don't know if it's worth it or not?

I don't really need it for the dirt, but for motarding I'd kinda like to get rid of the flat spot up top.

Also, what manufacturers work best if it's worth it?


i'm very interested on this subject too!!

ive got one on my 600 and i can tell you it def feels a bit stronger up top. I replaced it troubleshooting a spark issue i was having and because it was an 'upgrade' :crazy: lol. IMO its worth $50 or whatever they are.

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