I got mechanical question. what kinda pipe for the 250 R?

 

i got an answer, ESR TRX6 or TRX5 pipe, dependin on your riding style and where u need power. It's extremely loud, so i would suggest using it only on the track

 

well for my 250R i got the FMF REV pipe, it has a lot of mid range hit and top end. but it takes a little away from the bottom end. the FMF pipe has got all of it great from the bottom to the top, wish that was what i got. but it depends on the riding u do.