Registered Forum User
Mille
Posts: 145
Join Date: Feb 2005
Location: Hastings, East Sussex
I have just gone out to the garage and measured all the various exhausts I have.
Standard 888, 40mm headers. Standard ST4, 45mm headers. SP2 exhaust on bike 45mm headers and 50mm silencers. So, yes I was 5mm out, but the bike has the right size.
Still very happy with what I have.