I have searched high and low and cannot find a definitive answer. Everyone says Bilstein/Tenneco/Rancho etc. I do very little offroading, so Im not looking for anything designed for that. I just want an all around good replacement that matches or surpasses the OEM shocks. I dont want to spend more than I have to, but dont mind spending more to get increased life and performance out of them. Im not certain what I have on it right now. I bought my 11' with 64k on it and now have 95k. I figure its probably time to replace them. The ones that are currently on it are, from what I can tell, red. I cant see any other writing other than the ID tags with what appears to be a part #. I have a 2011 Z71 LS model.