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easy/cheap upgrade
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Posted by: honda965

i have an 2003 300ex already jetted wit K&N filter. what else can i do to make my quad faster?

Posted by: elementryder

get a tom carlson shorty exaust

Posted by: honda965

already got a full fmf exhaust

Posted by: Honda TRX250ex

Change your gearing...

Posted by: honda965

what i gotta do to do that

Posted by: Honda TRX250ex

Get a bigger or smaller sprocket for the rear and front depending on what you what more.
You said faster do you mean faster in top speed or faster in accelaraction?

Posted by: mr300ex

If your going to change ur gearing just leave the back sprocket stock size and add a tooth in the front. I didnt lose any acceleration and gained alot of top speed. I ran it next to my buddys truck and we hit 67 mph. The only thing i have done to mien is jets,filter,pipe,rev box, ohh ya and i have 20 inch tires so u might get more top speed than me.

Posted by: elementryder

get a 12 front sprocket acceleration kicks butt

Posted by: ontarioracer#33

the easiest way to get it to go faster with out changeing the gearing (I would not do it. I like the hard pulling acceleration and mine will do 70 with stock gearing) is get a high rev cdi box. i got mine from four stroke tech. they work great more speed plus they change the curve slightly all round best mod imo