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View Full Version : K&N Airfilter for 250EX



04-18-2002, 09:33 PM
Hi, I was just wanting to know how much horsepower the K&n Airfilter gave the 250EX Stock, with the Drillholes in the Airbox. Also How many Horsepower is already in the 250EX Stock.

Thanks.


250EX-rider_02

04-21-2002, 12:53 PM
I have never really seen any specs on just the K&N air filter! I do know that when you mod the exhaust or go with aftermarket exhaust along with jetting the K&N air filter really comes into play. I was really impressed when I modded my exhaust jetted to a 115 main jet and put a K&N air filter on! I have modified my airbox, I just dont snap in down in the back and leave a crack!

Hope this helps.

ChadEXer
04-22-2002, 08:59 AM
Bad day,,what did you do to mod the stock exhaust?? On my wifes I just took the end cap out of it. is that what your talking about??