Powerflex black series vs purple?

[Ben1720Cup]

Hi everyone

About to purchase some bushes for my 172 cup. I’m looking at the powerflex black series and the purple ones. Is the black really that much better?

 

[JamesBryan]

No warranty with the black.

Lifetime warranty with the purple.

I read somewhere that something like the purple are 50% stiffer than oem and the black are only 10% stiffer than the purple.

Numbers could be wrong 😅

 

[JackJack]

I'd go for purple on a road car for the warranty

 

[npt]

Sandard bushes imo, but if you have to then purple