Nope never heard, but if I order another dp with cat it'll always be better then factory cat. So wouldn't the hi Flo catted dp do the same thing, even if I got the dp with the bung for my o2 wouldn't the car still read my rear o2 again and still give me the same problem because the signals between the o2's and pcm would be off, and the pcm would notice the different cat and still give me the same problem of running rich and causes my ltft's to go crazy and stay +.