I tnink both systems will need youto decide what your truly going to do with your car. I don't know anyone with any system with 20k plus miles on it that can chime in. I have had 3 sets of the Magnum Force upper controls arms and never had a problem. I had a set of RMS upper arms and didn't feel those would meet my needs in a larger car and the construction seemed a little light when comparing them. I would rather have Magnum Force parts on my car, if I needed any tech or parts, they are like 20 min from my house. I can't afford a new system, but have used their parts on my latest project and found it worked great since my car was dumped deep in the weeds. On the plus side, Magnum Force will build the system on your car so it gets better tollerences and I don't think they charge extra for the service. Not sure what your plans are for your car in the long run, but that should be considered before you spend dime one on the suspension.