ZZR suspension

[Dan ZZR]

G'day all,

I’ve got a 2005 ZZR 600 and looking to replace the rear shock, I'm wondering if I'm better off staying stock or upgrading?
I want to sporty it up a bit but as the bike was 4yrs old when i got it so I can't testify to how stock starts out.
I'm just sick of seeing my mates CBR disappear as soon as we hit corners!

[z900/zx9]

The rear shock on those bikes are really basic better of to start with a more adjustable shock