The H&R 50396 is a progressive-rate sport lowering spring set for the B5-generation Audi A4 Quattro (AWD), covering 1996 to 2001 models. It replaces the factory coil springs to lower the car's stance and firm up its handling response while keeping the ride streetable. For a B5 owner who wants a noticeable handling and appearance upgrade without moving to coilovers, a sport spring set is a practical first step. Pair it with the sport shocks or struts H&R recommends for the setup, since a spring alone changes the ride height and feel more than damping control.
Search terms this part is typically found under include B5 A4 Quattro lowering springs, 96-01 Audi A4 AWD sport springs, H&R 50396 B5 spring kit, and B5 quattro sport spring upgrade. Fitment should be confirmed against your exact chassis, engine, and wagon or sedan body style before ordering. Owners replacing springs on a B5 usually work on a lift-supported car with a spring compressor, so plan for tools and an alignment afterward.