how much difference would a racing cam, springs, and rev kit help on a 400ex....a friend of mine got all that done for about 300 dollars and see it bumped him up a few bikes....for 300 thats good, but is this so? thanks for the help

 

If you really want to be ahead of the crowd, ride more safely and faster, save your money and invest it it shocks & maybe a steering damper.

Then start with the engine mods.

 

thanks, i have works on the way......im thinking of a damper....i had to spend my money first on the shocks and an aftermarket axle nut...but i was still wondering bout those engine mods....