This is what mine was looking like with a bad M370 install on a dynojet with an overlay of the existing exhaust mods
http://www.the370z.com/attachments/i...-m370-dyno.jpg
This is the graph of what it looked like just before the stock manifold and all listed mods on my sig.
http://www.the370z.com/attachments/i...ifold-dyno.jpg
This is nearly a 100 whp difference from one mod incorrectly installed.
This is the video of what it sounded like.