Hi Demitris (Mitsara)...

The performance of the shock defiantly will be better... Especially in track conditions...You will be able to tune your bike in any track situation and that way you will be able to get the best of your NSR...Rebound damping is a very BIG, BIG deal...So go for it...Just check that it is in good working order and then just put it on...!!!
Regards
Mixalisen