sparks450r

Hands down to the banshee's.. they really are king of the hill.. but yet i own a Honda 450r.. lol.. anyways 4stroke wise i would go Honda.. 99.9 % of the time i kill the YFZ and yes i have ran some really good competition they still are no where to be found and to dnchvyman your YFZ is broke down and you talking smack.. i love that Get a HONDA !

I have a Honda 2005 450R looking to do a big bore kit.. i was wondering what is the most reliable kit i mean i dont want to go insane but get something a little extra ya know.. maybe a 480 or 500 no bigger than 500.. but i hear Curtis sparks is coming out witha 490 for the honda.. any suggestions? Cost wise.. if you know somebody that can do it that know's there shiz.