We call this a large. It is enough to support 800whp. This turbo spools like a GT35R (200lb ft at 4200rpm is typical (faster on strokers)) but makes 800whp if you have the fuel and guts to support it. The standard configuration uses the awesome DOC Race top mount tubular exhaust manifold. It uses a 3" V band downpipe and a 44mm V-band style wastegate.
The larger S series compressor housing (4" inlet 2.5" outlet) is standard.
Built to order, expect 3-6 week build time