I have heard nothing but good things about the Yosh exhaust! The only other thing I have heard about them is they ary a little long, but they look good to me! I just picked up the LeoVince SBK Oval and love it!
yeah 300 is a deal. They do stick out of the tail a little more than the other brands. If you don't like that look, cutting it down isn't a big deal. On a side note, yosh is known to be a little on the quiet side.