I meant high flow quiet, not can't hear myself think and people in the next county can hear me exhaust lol. Just kidding, does changing the exhaust on these cars make that much of a difference anyway? I was reading somewhere that the Swift utilizes the most performance from its factory exhaust, in that changing it would do squat. I don't know about the aveo though... looks like it could use a little more mojo in that field, but like I said I don't know.