1st - big thanks to Eisen for hosting the videos.
2nd - videos are not great visual quality but if listened to through proper speakers or headphones they sound pretty good. The iPhone picks up a lot of sound (which is good and bad), for instance, in one video take from the top of the hill, you can hear the kickstand kicked after I pull in, so if it sounds very loud, it is actually not, infact....)
The install was straight forward, and I did refer to Adam's video a couple times just to be sure, and to see what is supposed to be done with the kickstand rubber stop.
The only issue encountered, once everything was installed, was the arm on the kick stand hits the actual exhaust. The solution I used (my father engineered it was to take the rubber stop off stock exhaust, cut the nipple off the back, then using a longer bolt, run it through the rubber stop and into the kickstand and connect to the arm. The rubber stop hits the frame and gives the arm about a quarter inch or more of space between it and the exhaust. The bolt does NOT hit the frame, as the frame is hitting the edge of the rubber stop. See pics on this...
So my opinion of the sound? Fantastic! Deep, and it really, really gives you a solid parallel twin double thump. IE - sounds like a thumper, but doubled up. Others call it "lumpy", but in a good way.
I do have an Xpipe, and I find the decibels to be between that of BC Shotguns or the Slashcuts WITH Cat and WITHOUT Cat. So decently loud, but not ear busting like BC
Vids include Stock sound, 1st startup after install. Drive up the drive, couple drive bys and pulling into the drive. Note, on the left to right drive by, I did drop a gear at high RPMs in the distance to here the deceleration. Def some popping.
Would I recommend Gasser for a solid solid sound and well made product yes. Yes, agreed the fit and finish on the cone weld could be better, but that's how they make them so it is what it is.