I have seen 2 different brands of x300 rear shock upper isolators, one from KYB, the other from Moog. Does anyone have any advice on which ones to order, and thanks for the response to my question about which Bilsteins. I went with the B4's.

 

Hi jmstunts,
I just replaced the rear shock absorbers with the KYB isolators.
The isolators were from RockAuto and the ones that came were the yellow/orange color, not the black color that was displayed.
I wasn't able to find much in the way of spec or differences before I bought them, but the KYB's seem to be pretty solid and went in without a problem.

 

the genuines are like 10 bucks more on ebay