Excerpt: High performance. We expect this term to imply faster, stronger and more efficient. But what does it mean to us audiophiles? A not altogether improper analogy can be made to racing. In my 20s, I fell in love with sport motorcycles, so much so that I decided to try my skill in the club-level road-racing scene. I soon came to find that the "box stock" class is anything but. Engine blue-printing and intake and exhaust modifications are the rule.