4.2, I've got about 1,500 miles on mine so far, doing pretty good. I've been feeling a bit more bounce now that they are softening up a bit, minor, but I'm also running on the full soft setting. Maybe next time I have the car apart I'll go one step further for a tighter return, seems like the spring is getting away from the strut just a bit. If I had extra cash I would be tempted for something with more adjustments, but this is a really solid setup for the price, thanks again for getting me to put these on!