I have MRT's catted H-pipe and all I can say is the following:
*perfect fitment
*no MILs despite not having MIL eliminators (unlike Bassani's catted X pipe and really most other catted pipes)
*excellent sound when coupled with
flowmaster 2-chambers (all i can speak for since that's what I have.)
I highly recommend paying the extra cash for this all stainless steel catted H-pipe (the only stainless catted H-pipe I'm aware of). Bassani is high quality but their cats must not be as efficient/etc since many people still needed MIL eliminators even with the catted version. My brother has the catted bassani X pipe and this was his experience.