poly bushing black series, pros and cons? worth the money?

[04kendalld]

Was thinking of buying black series poly bushes as I'm going to be tracking my car..

Really want some opinions, do they do much over the standard bushes handling wise?

 

[Sargara]

I've got the Dogbone for sale if you are interested?
http://www.cliosport.net/forum/showthread.php?747132-172-182-Powerflex-Dogbone-Black-series

If your car is still running the standard Dogbone it left the factory with, you will deffinately notice a difference.