General description Coilover Suspension Shock Spring Strut designed for various Audi A4 models from 2000 to 2008. This product allows for height adjustment, enabling a lowering range of 0-25mm depending on the vehicle model. It includes two front and two rear struts, along with two wrenches for installation. Technical specifications Quantity: 2x front + 2x rear + 2x wrenches Height adjustable: Yes, lowering 0-25mm Spring rate Front: 6.5 kg/mm (364 lbs/in) Spring rate Rear: 10 kg/mm (560 lbs/in) Spring length Front: 295mm Spring length Rear: 208mm Front spring inner diameter: 70-71mm Rear spring inner diameter: 42-46mm Spring Preload advised: 7-10 mm Compatibility and accessories For Audi A4 Avant 3 /1.9 TDI /1.8 T /2.0 FSI (2000-2005) (8E5, B6) For Audi A4 (11/2000-12/2005) 1.8 T for quattro /3.0 for quattro (8E2, B6) For Audi A4 Avant 2 /1.6 /2.0 TFSI /1.8 T /1.9 TDI (11/2004-06/2008) (8ED, B7) For Audi A4 (11/2004-06/2008) 2.0 TFSI for quattro / 1.8 T for quattro (8EC, B7) For Audi