ok i gotcha. so that original pipe mustve been pretty damn restricted i guess. Now would that go to say that running without any exhaust at all (on that given bike) would result in an increase in performance (and loudness)? My friend has an expansion exhaust that came with his Flandria Bermuda. The thing doesnt run now, and doesnt look like it will be running any time soon. Gonna see if I can steal it from him at some point.