1st, the GXP is one of best american sports sedans of its time. I dont know what kind of improvements anyone would hope to get, other than just adjusting ride height for asthetic/personal pref.
ZZP RE-sells c/o made by Arraut Motorsport. ZZP sells limited selection of options, 1 option is AGX struts. If AGX is in fact a downgrade for GXP owners, then don't get c/o from ZZP.
If you get the c/o kit without strut direct from Arraut, you buy the strut you want, cut the perch off, and assemble. Arraut has options other than KYB.
From my very limited research, mis-matched spring-rates and strut valving is an issue for everyone that lowers cars, lowering springs or c/o. Anyone with correction to this, please offer up solution to properly match strut/lowering spring combos, I'm sure lots of readers would benefit.
