I've lowered my b5 by 40mm on Apex springs, cost me £90 the set, I also had to change my back shocks, as they were completely shot....20% harder than before £45 for each side, got a mechanic friend to fit em, all in all cost me £210 with labour, theres about 1 inch space between the wheel and arch now, does'nt look over the top, and handles like a dream, was considering lowering it by 50mm, but gonna see what my 18"s look like first.