I have a Flyin Miata Free-Flow CAT for a 1.6 Miata that I picked up used a few years ago. It was on my car for about a year, but I failed inspection with it. When I put the OEM CAT back on, it passed, so this one isn't doing all it should be doing. I'll take $50 for it.
http://forums.dfwmiata.com/attachmen...1&d=1191870461
http://forums.dfwmiata.com/attachmen...1&d=1191870461