M4 Carbon Exhaust Opinions?

[cmor15]

Found a deal on a used M4 slip-on carbon exhaust kit for the FZ6. Does anybody have any first hand experience or opinions about this exhaust? How much performance increase can i expect to see with this? How does it compare to other exhausts?

 

[aziebell]

http://www.600riders.com/forum/fz6-general-discussion/29096-ever-wondered-exhaust-should-i-buy.html

I don't believe that thread had the specifics for the M4, but it did have a video. My bike came with the M4 Titanium, and I have always been happy with them. I have no idea about their performance increase, but for me they look and sound good, so that works for me.