Well I decided to remove the second cat and put a straight pipe after my header...I knew it was going to be louder but it is now stupid loud. I mean it sounds kind of cool if it was strictly a track car not a dd. My question now is what would be best to quiet this thing down?? I have an OBX header and an MBRP 2.5" cat back. I was looking at the FSwerks stealth muffler which I might be able to cut and weld to the MBRP, I'm waiting to hear back from FSwerks on the length of the stealth muffler to see if it is possible, or would I be better off getting a magnaflow resonator? Trubendz has an 18" resonator with the flange already welded in that I was looking at. Would one be better than the other?