yes 2 x 200 cell sports cats where the mid's are in the original. It may be more obvious to the tester if you have just the down pipes on to a standard exhaust that something is not right. As you know the law is that any part of the emissions control system removed is a fail regardless of what comes out the end. With mine being a full system it all looks the same and there are 2 cats. How many testers know that it should have 4? If you have 2 shiny down pipes going into the oem system it might ring alarm bells. Most would be ok as long as the gases coming out are under the limits but you never know.