Registered Forum User
Big Twin
Posts: 1,773
Join Date: May 2004
Mood: Proud to own a Ducati :0)
The cheapest is a 'slip-on' style exhaust. It removes the catalytic convertors and silencing material.
The next one up is a full system from the headers back and is a 2-1-2 style. This is the same bore as the standard exhaust. (54mm?)
The most expensive one is another full system 2-1-2, but with a larger bore. (57mm?)