i was told that if you lower a bike to much (in the front) that it makes the riding very sketchy? i plan on slamming my bike, to the point where the plastics are 2 inches or less off the ground. im not real big into the 150+mph thing anymore, so im not worrying about high speeds. more concerned with daily riding with the here and there messing around, (any input would be appreciated)

second question?....if i don't run a muffler on the bike, (plan on running custom duels) will that tear up the motor? i heard that it will make the bike a little slower (once again not worried about top speed) just don't want to put extra wear and tear one the motor...