An apparatus for modifying an exhaust stream of a diesel engine is provided.
The
apparatus includes a muffler arrangement having an exhaust inlet and an exhaust
outlet in construct and arrange for sound attenuation therein. The apparatus also
includes a catalytic converter arrangement positioned within the muffler arrangement
between the exhaust inlet and exhaust outlet. During operation, the exhaust flow
is directed both through the muffler arrangement and the catalytic converter arrangement,
to advantage.