I'm interested also. I was looking at these options to replace my Borla:
-Buying a pre-bend 3" to 2.5" Y with dual Magnaflow mufflers and resonator ~$600
-Pre-bend full 2.5" with dual Magnaflow mufflers and resonator ~ $550
-Tsudo 2.5" catback ~ $500
Same site selling the pre-bend pipes have an option for a single 3"
Still on the fence. I know Paul did full 3" to dual magnaflows including PCD and Jpipe for his J36 MP90 builds but maybe overkill for us.