I lowered mine 7/8" in front and 3/4" in rear. I think they have settled a little more after riding for a while. I think 1.25 is max that I would go. There was a rather long thread some time ago about a guy who had his PSS9 at GT2 height and he did hit the bump stops (not good). You can also get different versions of PSS9. Al, I will tell you there are other coil overs out there...JIC and Motons for example that are better for track, but for all around, the PSS9s have been very good for me and, did I say...way better than stock (also adjustable).