As most of the reviews say, Rottweiler is the best. The instructions for everything were very clear and if the pictures and instructions aren't good enough for you, the YouTube videos are even better.
I love how my bike sounds now with the new intake and if I could speak to how smooth everything is now, I would. It turns out that the previous owner of my bike had already done the SAS/canister removal, installed the fueling dongles etc but they did it the lazy way and left the O2 sensors and SAS covers on so I didn't know it was already done. I removed everything and put on the new covers, and plugs and I replaced the dongles as the ones from Rottweiler look like they are assembled better and not just a resistor jammed into the old plug. Overall, I am very happy with this. As far as sound goes, it's louder but not noticeable until I really open up the throttle... and then it sounds awesome!