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Does anyone have a recommendation on a muffler thats less restrictive than the stock 2004 CRF250X muffler but still meets green sticker?

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Does anyone have a recommendation on a muffler thats less restrictive than the stock 2004 CRF250X muffler but still meets green sticker?

The exhaust system isn't what gives the X the CA "Green Sticker". The crankcase venting to the air box and the injection of air into the exhaust flow along with running it a little lean is what gives it the Green sticker. Your choice of exhaust will be decided by the db rating of the system along with an approved spark arrestor to meet Forest Service requirements.

I'm running the Dr. D and have utilized Applied Racings emissions block off kit and their crankcase breather kit, and I'll still get to keep my green sticker when I re-register it next year.

Do a SEARCH!!!!! Many posts about exhaust systems/slip-ons for the X.

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