anyone running a fireball universal or axle-back muffler?... how's the sound?... i heard the axle-back exits on the passenger side... is this true?... anyone have pics of either one?... i will prob go with the univ. muffler, custom mandrel bent pipes, and a new cat since i want to mount the muffler angled up and tilted a little to the side... choosing parts is so frustrating yet fun... thanks for any help