An exhaust control apparatus for a motorcycle includes an exhaust
collection pipe, which collects and combines exhaust gas from a plurality
of exhaust pipes, and an exhaust valve. The exhaust valve is operatively
attached to the collection pipe and controls flow of exhaust gas within
the collection pipe. A pivot shaft of the exhaust valve is situated at an
angle and is displaced from the centers of the exhaust pipes, such that
the shaft is not aligned with the centers of the exhaust pipes. This
arrangement of the pivot shaft provides a smooth, non-turbulent flow of
exhaust gas, and reduces impedance to the flow of exhaust gas. The
exhaust control apparatus may be mounted to reside within a recess formed
in a motorcycle body frame, to reduce vehicle width.