An exhaust system for an internal combustion engine having two banks of cylinders
by which pulses of exhaust gas are alternately directed to a diverter subassembly.
The diverter subassembly, which is located in the muffler, includes a perforated
gas decelerator chamber which divides each pulse of exhaust gas between two exhaust
outlets and causes a low pressure wave to occur in the exhaust system to enhance
scavenging of a subsequent pulse of exhaust gas and thereby improve engine performance
and mileage. The muffler further includes one or more cores and may or may not
include a dead air space chamber to provide attenuation and tonal balance to the
exiting exhaust gas.
