If there is any way for you to hear them in person, I would highly recommend it. I listened to every video I could find when I was trying to decide on an exhaust, and the Freedom 2-2's I ended up getting still sounded 10x better in person than they did in any video.
Between mediocre mics on webcams and smartphones, they can't do a great job recording the sound. Even if somebody set up a really good system, you're most likely going to be listening through some crappy computer speakers.
To be honest, I think the Raider is going to sound pretty good no matter what pipes you put on it. They all have little differences, but they're all going to sound good. For most, the big deciding factor is the look.