I have an 06 with 9K miles now. +1 what Dragginazz said. That extra piece he's talking about is called a powertip I think. I recommend it.

 

Erion is nice good quality not sure how it would sound on the rr but I have one on my F4i and its not loud at idle but when you get on her she opens up nice and loud

 

If you like the stock look getcha one of these:

 

i had a 2bros on my 06 and LOVED it. cant say enough good things about it.

 

I think if you want good tone at a cheap price with decent power, Arrow is prob the go to exhaust, can get it for 380 shipped off pipecity.com.

Sato, Arata, Arrow and Akra are all good. If you just want noise, Two Bros, Yosh, Jardine, and D&D. I'm not knocking any of the others, hell I got a Two Bros on my F4i lol, and I love it. I just think if you're out for power and reputable name in racing and whatever, the first choices should be near the top of your list.

Really all depends what you're after. Everyone likes whatever exhaust for whatever reason.

 

Leo vince, arata and Akra are all nice quality. If I had the money I would buy either the Akra hex tip pipe which seems to be alittle louder than the normal end cap from what I can tell or the arata "box" shape pipe which exits straight. (the round can exits crooked). It would be a tough call both their quality are excellent along with their power gains. I bought the yoshi because it wasnt as expensive and I really like the shape and look of the carbon fiber RS-5. i got lucky in the fact it sounds exactly how I wanted my bike to sound. It also feels like it pulls harder than when I had the scorpion on there. If your budget minded you could consider an erion. I had one on my 929 and it sounded great and my friend has one on his F4I and it was quiet at first but now its nice and mellow but the slightest crack of the throttle and it really barks. sounds nice and affordable. Thanks for servin and make it back safe.