Well I can tell you what not to waste your money on. I too have G/C and I just recently installed Koni's and I was hoping it would get rid of the harsh ride I was experincing with the stock struts. I was wrong, car still has a harsh ride, but does handle corners better, not exactly what I was loOking for. Very upset that I spent the extra $100 per strut compared to other companies out there. Take my advice if you plan on going with G/C, just know your ride quality will be poor no matter what strut application you use.
P.S. make sure you cut the Spring Perch off the strut too fit the G/C's, I made that mistake and payed a hard lesson.