Geparts Chassis Kit / Road Handling Kit GLA, GLA 45 AMG 4-MATIC, lowers 20mm front, 15mm rear,. Includes Lowering Spring Kit and sport gas shockabsorbers. Gives a pleasant, firm and decisive hold of the road without being bouncy or uncomfortable. At Geparts you pay easily and smoothly with Klarna - card payment, partial payment, invoice or account.