I have the PST strut rods on my car, they work great (huge improvement in steering precision and no more pulling to the side under hard braking) and have held up well after at least 10k miles. However looking at the QA1 ones they seem to be slightly better quality, I like the finish on the rod itself with the "knurled" section and the part that holds the Heim joint looks a lot beefier than the bent steel bracket on the PST. Plus right now I just looked and the QA1 strut rods are about $40 cheaper than the PST units. I don't think you can go wrong either way though.