Looking to buy an exhaust for the new Ninja 250R?

I currently own the new 08 Ninja 250R and love it. However, I hate how quiet it is, and the converter in the exhaust adds unwanted weight. So now I%26#039;m looking for an aftermarket exhaust for it. I%26#039;m leaning towards the Two Brothers, but theres also Yoshimura, Hindle, FMF, Leovince, Jardine, etc. etc. Does anyone have any experience with any of these exhausts on their Ninja 250R?|||Go to youtube.com and see some videos with different pipes on the ninja 250R and listen to how they sound.