A shielded muffler that will direct heat and noise away from you.
A warm cap and woolen muffler in winter were a must.
If you're in desperate need of Virgoan attention, make sure your printer is jammed or your car muffler is shot.
The excess oil is expelled from the exhaust muffler along with any other particulate in the air supply.
Mass centralization and a center of gravity are further enhanced by locating the muffler below the engine.