Re: Lowering a 01 gt with 18" rims???
Yah Eibach pro kit springs are probably your best bet. I'd suggest H&R's but the ride is quite noticeably stiffer than stock. The pro kit's a little more forgiving.
You may also want caster camber plates with the springs. If your shocks/struts are worn, you might as well replace them too.
12 Black GT500 SVT PP l 2.6 Pulley/Idler l Airaid l o/r X l 305 NT555R's l Recaros l
04 Azure Blue Mach 1 / 03 Sonic Blue 3.8 / 14 Sterling Grey F150 FX4 402A 5.0 / 11 GT500 R.I.P.