with zero power gain.

Taylormade has said that there is no difference between their exhaust and the stock one in power only thing you are changing is the sound and looks.

which imo is pimp as hell. but im not spending 800 bucks on sound and looks.

 

You're somewhat right.
The Taylor Made does make a few ponies at the bottom and in the middle according to their dyno chart.
The Yoshimura slip on makes even less. .1 RWHP http://www.yoshimura-rd.com/ps-3670-...n-slip-on.aspx
None of the sftermarket slip-ons have any real gains (2-4 RWHP) so power wasn't an issue with me.
Looks, loosing 10lbs, and loosing the CAT were more important.
I'm probably going to get a full Akro system anyway because I'm going to race my CBR at Willow Springs. The Taylor Made might not fit inside the enclosed race fairing, but we'll see.
If you really want some more power, get a PC3 and their ignition module. That'll add 11RWHP after 10,500.
I'll keep you informed.