I have been running an Invidia v2 catless DP (used on eBay for $145) and GReddy SP2 CBE (new on eBay $299 - all hardware and gaskets included) for over a year now. So the whole kit for $444.00 shipped to my door. No fitment problems at all. It took me a little over three hours to make the swap, but I was all by myself. It is a great setup for the highway. I've put over 16,000 hwy miles on this setup and I still don't think that it's much, if any, louder than stock inside the cab. Outside is a different story, however. It also sounds really great under load. Around town it gets plenty of looks.