I'm using on a set of titan.I paid close to RM3k,can't really recall the exact price.You can try up the test car,also an ef3.Cheers and Gong Xi Fa Cai!!
You can pm ninja_iga about the titans. They have an EF test car running on titans.
Price ranges are about 800+ for unadjustables but stiffer than stock and 1000-2000+ for adjustables stiffness and high/low for chopshops and new.
still contemplating on whether to get a GTT to replace my current daily driven car.... was wondering, how many are you guys using a GTT as daily driven car, and any problems with your car?