Faction mx valves

Would it be ok to run faction ss intake valves and faction springs with stock exhaust valves and springs in my 2004 CRF250R

Yes you can mix and match. I know people that only buy stainless exhaust side valves for their bikes because they can save a buck. Better to just do the whole thing though. (safer)

have the head sent out to put bronze seats in, and put stiffer intake springs. that will solve the problem

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