I have the Borla 112 system. I have been a little dissapointed with the sound of it. My intake was louder at full throttle. So I tried putting straight pipes at the resonators. Sounded great but the drone sucked. So I put the resos back on. After reading on here about how many people are happy with the brylcreem mod, I decided to remove the Borla mufflers and replace them with straight pipes and leave the resos on. So this is what I have now.... MUCH louder at low rpm mild throttle application, much louder at mid rpm, mid throttle application, and no louder at all then the 112's at wide open throttle! Whats up with that??? I was expecting the biggest gains to be there. Also, I now have drone again as if I removed the resonators. I will post some vids with sound tomorrow. Don't get me wrong, it sounds great when I am accelerating, but its quiet considering from the cat-back all I have is Borla resonators, which you can see straight through(like a glasspack). Am I expecting too much?