2002 wr 426 PERFORMANCE

I have a 02 wr and i'm about to put an 02 yz exhaust on, what other mods should i be considering at this time? I remember something about a grey wire mod but i'm not sure this applies to Canadian wr's? Any help on this would be great!!

I don't think the Canadian version needs the throttle stop or the gray wire cut. You might look into YZ timing, or an '03 cam...

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