So i am thinking about slamming my grand prix gtp with these lowering springs https://www.zzperformance.com/grand_...454&catid=138\
My buddy who changes his height on his vw on a weekly basis told me i should go with a full coilover kit, assuming this is the best option because id be able to adjust the height of the car whenever i want, but does anyone know hoe much height can be adjusted on these particular???https://www.zzperformance.com/grand_...1149&catid=138