maXpeedingrods 2 Pcs Rear Air Suspension Spring to Coil Spring Conversion Kit for BMW X5 E53 2000-2006, Coilover Shock Absorber Suspension Strut - KJ084

• 【Fitment】Fit for BMW X5 E53 2000-2006, note: when installing, restrict falling off steps to face inside 【Spring Rate】Spring rate Rear: 5 kg/mm (280 lbs/in), Spring Preload: 7-10 mm, Rear: 440-507mm, 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 【Excellent Material】Most components are made from 6061 aluminum with T6 for increased hardness -- the advantages include excellent strength, and aluminum helps keep the weight down 【Twin-tube Structure】 Compared to mono-tube construction, the twin-tube has longer stroke and higher height adjustability, and they will give you a more comfortable riding experience by reducing the pressure on the joints and also minimizing friction and ensuring sufficient travel with less effort 【Note】Come with fitted rubber boots to protect the damper and keep clean, and warning light off module not included