M370 installed, there's definitely power gains, by the feel of it, they're not small
The car sounds much smoother on acceleration and just seems to breath more free now.
The exhaust note has changed a bit also after the install of the M370, not in a bad way
I'll have the car dyno tested at next oil change and post up the numbers.
This a good mod.
One negative is that we were missing two (2) screws with our kit and Seb had to find a couple on his own.