The lowering is measured from a standard car (ie non gti). The 8v is lower than the cl , driver, ryder etc. The 16v is a bit lower still and has slightly heavier springs. It think that the basis of all lowering kit is the non gti model. So if you get a 60mm kit it will drop a non gti 60mm, a gti less and a 16v less still. Am I talking pish or what?