Im looking for a catback that is quieter than the borlas I have now. The borlas came with the car and I believe they are the stingers. the mufflers are not much bigger than the pipes. I also have a mac prochamber OR midpipe. What would Yall suggest to quiet it down some. Would I lose alot of power going bact to the stock catback with the OR mid? Anyone interested in a trade for my borlas?