General description maXpeedingrods' MXR-S1 series Performance Suspension Kits are designed for those looking to replace old, worn-out struts while enhancing handling. These kits offer height adjustability while maintaining the original equipment (OE) ride quality. Technical specifications Type: Lowering Kit Spring rate Front: 9 kg/mm (504 lbs/in) Spring rate Rear: 12 kg/mm (672 lbs/in) Spring length Front: 190 mm Spring length Rear: 190 mm Coilover overall length Front: 460 mm - 520 mm Coilover overall length Rear: 400 mm - 450 mm Quantity: 2 front shocks, 2 rear shocks, 2 front springs, 2 rear springs, C-Spanner for adjustment, Front bump stops and dust covers Compatibility and accessories For AUDI A4 Avant 3 /1.9 TDI /1.8 T /2.0 FSI (8E5, B6) 2000-2005 For AUDI A4 Convertible 3/1.8 T/2/2.7 TDI (8H7, B6, 8HE, B7) (01/2002-12/2009) For AUDI A4 (8E2, B6) (11/2000-12/2005) 1.8 T for quattro /3.0 for quattro For AUDI A4 Avant 2 /1.6 /2.0 TFSI /1.8 T /1.9 TDI (8ED, B7) (11/2004-06/2008)