please help..

[AtvRider21]

i might get a dirtbike to go with my ex and i had to take my wb pipe off cus it was too loud and i want to know wats louder a 400ex with a wb pipe or a stok yz 125. thanks also how do u mix 2 stroke fuel like do i get high octane gas and mix oil but how much please reply thanks peace

[AtvRider21]

guys please reply i really need your help thanks

[jb400exxx]

i'm not sure, but with stock exhaust it might be somewhat quiet. ask a dealer near you, they should know. ask them if you could hear it b4 you buy one.