I have used it before and it was for sure louder and sounded way better then stock

 

Same here, currently have this exhaust and even with the silencers in it was still slightly louder than stock. With the silencers removed it was definitely atleast 1.5x louder than stock. Now that it's broken in nicely, I'd say it's closer to 2x louder than stock while retaining the same VQ sound which was exactly what I wanted.