Agreed, if you're goint to go with an MRT H, I'd ditch the stingers. Although some are happy with that combo, most have hated it and blamed the H and sold it, or switched catbacks and loved it.
Here is a link of my midpipe/catback combo...
MRT O/R H with Magnaflow Catback Soundclip
Here is a link of my midpipe/catback combo...
MRT O/R H with Magnaflow Catback Soundclip