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Ex'In_Alberta
04-17-2004, 03:18 PM
lookin for quick mods for my 400ex that add noticable power, i've got k&n and other small **** but i want something i get on and notice it...whats cheap and easy ta mak'er fly

outofsight
04-17-2004, 03:28 PM
A14 tooth sprocket would make it pull alot harder but lose some topend. Take of ur airbox lid if you dont ride in lots of mud and water. With your k&n and no lid if its properly rejeted its about 1.5 horsepower gain. not to much i can think of.