before I bought my Roush axlebacks, i looked at loads of videos on Youtube of all the different exhaust brands and setups. they helped in making the decision for me but the videos weren't the only deciding factor, nor should they be. as explained above, sound is very tricky to record accurately, especially using digital media (why many people still prefer analog). and then to playback the recordings through computer speakers or otherwise alters the sound even more.
the only option to get a true, accurate understanding is to hear them all in real life from both inside and outside the car. inside the car sounds nothing like outside the car, as i quickly realized myself. everyone has a different opinion and tolerance on what sounds good to them so while what may be "good or bad" for one person could potentially be flip-flopped with another person.
2012 Kona Blue GT Premium Mods: Roush Axle-Backs / Airaid CAI / Bama 93P Tune / Redline Hood Lifts / Tri-bar Pony Floor Mats / Headlight Splitters /
GT500 Splash Guards / Exterior Light Tint / GT350 Quarter-Window Covers / Escort Redline Radar Detector