I have a 2001 model KDX 200 with Pro Circuit torque pipe and silencer. Is it worth it to port your exhaust side in conjunction with a torque pipe ? I think it makes more sense with a rev pipe . Any comments ?
Exhaust porting would be done in conjunction with intake and transfer porting. All of those would be done differently in a -35 pipe application than in a -30, likely.
Of course, any exhaust port timing change would have to include KIPS modification.
I'm probably missing your point. I don't recall in the last couple years anyone posting regarding 'do-it-yourself' porting......exhaust or otherwise.