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Message: [QUOTE="YoTRacer158, post: 827035, member: 21301"] i've been out of riding for about 2 years, but i just picked up an 04 YZ250F and had a couple questions as far as performance upgrades. Main things i'm looking into are exhaust, powernow and powernow plus, and a set of hotcams. I'm debating between the DRD and FMF exhaust, and was wondering if anyone knows where i can find some dyno charts with the hotcams or powernow installed. thanks for the help [/QUOTE]