ORIGINAL: Dave Wilshere
It's to the lazer marks! Lots of taper already compared with the Fan, not checked the FSA, but I'm sure it's correct
Dave
You should be 3.5" according to BVM's web site;
"
Electra Tailpipe - 31.375" length 3.5" exit diameter"
Looks right, the Electra mylar rubs on the fuse exit...
Jack