Had the stock exhaust unbolted then built it with new flanges back.
Vid doesn't do it justice. I shouldn't have placed the camera right inline with the exhaust. Anyway, tell me what you think.

Video revving: YouTube - 2009 Toyota Tundra Flowmaster Super 40 Dual w/ H-Pipe Dumped
Video of setup: YouTube - 2009 Toyota Tundra Exhaust Setup

Pics of setup: