Actually the Stock SVT rear Y-split is not as bad as people think.
I just had mine cut apart to clean it up. It's a lot better designed then I first had thought.
The only thing I needed to do was ground flush the dual pipes that the clamshell slip fit on. (The clamshell is actually a 2.5" ID inlet with 2 2.125" ID outlets)
I can tell you it is a Y-split, not a T-split.
Josh
My main question with your exhaust is noise (loud and/or boomy) & rasp!
How can only one center muffler control either one?
How about with a Y-pipe?
Y-pipe with no cat?
No cats altogether (or headers)?
With no cats, I can't control it with a resonator & 2 small mufflers. Sound would probably be nice if it didn't rasp constantly... Very loud still!
Before the headers (with cat-less Y-pipe); I was running just 1 resonator & 1 F-body style muffler & it was downright loud (some rasp). After the headers it was un-livable!!!