I have a 2014 Mustang GT and was looking on lethal performances website and saw that they have two catted x-pipes from Magnaflow but wasn't sure on the difference. I live in Louisiana and need keep the cats to get my yearly inspection sticker so an o/r pipe isn't an option. What is the difference between the "49 state legal direct fit x-pipe" and the Race x-pipe w/high flow cats"? I noticed on the site for the one with the high flow cats in the description it says "OFF-ROAD" but I had thought that was only for the mid pipes without cats. Anyone have any insight on this?