xsbean
XS650 Member
Hey fellas, I just finished retro fitting some short screamin eagle mufflers for a Harley to my xs. It’s just the tailpipe and the header pipe is still stock standard apart from chopping about 70mm off the last internal portion of the header. But the ID is still the same. I’m curious as to whether I’ll need to adjust jetting specs? My first thought would be maybe not so much but then again it is a shorter length of pipe and to that affect, slightly more free flowing. What are your guys thoughts? Cheers!