white brothers is the best pipe for the 250ex. pro circut is crap along with the hmf. but if moneys an issue get the fmf magamax II.

 

my friend has a PC t-4, it sounds good and added some

 

2 words-white brothers

 

i cant believe noone has said dmc alien those r like the best add great horse power and are fairley loud but no that loud there a little bit loude then a white bros that what i am gettin its the bomb ill give u the specks later cuz i think its the best pipe for it