Went with a friend to look at a 440ex today, sucker seemed to be all around tighter/cleaner but what really got me was how much quieter the engine was, not the exhaust the actual engine. Mine makes all these noises like an old chevy or something while the honda just kind of runs. As for exhaust sounds it kinda had this Blat blat blat thing going while mine is kind of a pop pop pop at idle and a pissed off growl / blat at wot. The honda just kinda blatted faster. Lol, also when they stopped his smelled like hot plastic and oils while mine always smells like burning grass and mud mixed with lawnmower exhaust smell.