Notice: No Top Mount Included, Modification Required If You Use OE Top Mount Coilover Suspension Kit for Audi A4 B6 B7 8E All Models Application: For Audi A4 B6 B7 8E All Models 2WD / Quattro Quantity : -2 front+2 rear shocks - 2 front springs+2 rear springs -C- Spanner for adjustment -Front Bump stops and dust covers. Specification: Type: Lowering Kit Warranty: 2 Years for any manufacturing defect lowering range: 35mm-55mm front and rear Front Spring rate: 6 kg/mm (336 lbs/in) Rear Spring rate: 10 kg/mm (560 lbs/in) Feature: * Adjustable pre-load spring tension * Most components are made from 6061 aluminum with T6 for increased hardness -- the advantages include excellent strength, and aluminum helps keep the weight down. * Hi Tensile performance spring - Under 600,000 times continuously test, the spring distortion is less than 0.04%. Plus, the special surface treatment is to improve the durability and performance. * All inserts come with fitted rubber boots to protect the damper and