Really am trying to find out if anyone uses one and what its like...How loud is it etc... and what else you had to compare to?

I bought a CT racing pipe this last year. It was the mid range model and was asked to try it out and if I didn't like it they would take it back. After 2 days of tuning, it has less bottom end then my FMF pipe and flat on the top end and loses power. After looking closer at it they welds are to hot that the metal at the weld points sink in. and the pipe hits the frame a lot and doesn't have enough support to hold the pipe so it leaks a lot at the flange.  So I would not recommend at CT pipe at all.   

I've got an 87 that has been built by CT racing. It put down 42.48rwhp with the CT racing outlaw pipe. Although this number sounds low, my seat of the pants meter calls bullshit on any misnomers regarding low power and dyno numbers. The bike flat out rips and will pull out of your hands if you're not paying attention. Low end is good, mid range is explosive, great for trails and hills but I feel it's holding back this built motor on top. I've got a Dr Q v2 out in the garage that I am going to try soon, will update with results when done.

Got the V2 pipe on and tuned with the Keihin 39. Picked up ten horse over the CT outlaw pipe. I'm sure there is more in it with
Hall or Q port. You can definitely feel the pipe hit now, and the engine has much more RPM, very happy with it. The CT Outlaw pipe is for sale.