here is the cheapest exhaust ive ever found for the 600rr without it being a piece of !@#$

http://cgi.ebay.com/ebaymotors/ws/eB...d=190243976211

 

two brother no question to me unless you got some extra cash then Akrapovic

 

2 Bros. definitely a good exhaust for the money, but having the Akrapovic on my bike...its a grin with every rev. Are you looking to go used or new?

 

+1: 2 Bros if you're budget-concious, Akra if you want the best of everything. If you've got the money for an Akrapovic, I HIGHLY reccomend you ditch the slip-on, and save a few more bucks for the full race exhaust.

 

Yosh RS-5, i love it, & it didnt break the bank, if $ wasnt really an object i would of gotten the Akra.

 

in 2009 i belive they changed the look of there cans, all have carbon tip and now with round ex port vs oval, much better imo

 

I have a 2 bros. on my 07 600rr and absolutely love the chit out of it.

 

I know someone who has a chm for sale, it seems to be a nice pipe, not junk, and he is only asking $100 or $120 I forget, but its a good deal, pm me if your interested

 

I have a yoshimura on my bike and i really like the sound. Its really all up to you, and your taste. Alot of people have 2bro exhaust, but in my own personal opinion i dont like the look. Akra is real nice, but so is yoshi... I dont know... lol

 

I've heard a lot of good things about Scorpion as far as sound and performance. I would stay away from D&D. Jardine is recommended by my friend riding a CBR1000.