Slip on Exhaust?

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Jun 19, 2007
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#1
I have a 06 CRF250X and am wanting to give it some more juice. I found a used White brothers MX4 slip on silencer that was on a 250x for about 150 bucks. I checked out the WB website and it doesnt list an application for a 250x only an application for a 250r. Will this exhaust work for me and will I be able to put a header on it later or is it only able to be used with a stock head pipe? Also, if it will work how do I set the carb jetting? Do I need to get a jetting kit or can I make it work by tweeking the stock carb a bit?