maXpeedingrods Coilover 24 Levels Rebound Damping for JAGUAR XJ8 / XJR X358 2007-2009/ X350 2003-2007, Air Suspension Spring to Coil Spring Conversion Kit, Lowering Shock Absorber Suspension Strut - MW38XS

• 【24 Rebound Force Levels for More Control】 Level 0-8 suggest for street use；Level 9-16 suggest for mountain anfractuosities use；Level 17-24 suggest for race tracks use. You can adjust it at any time to suit your needs. 【Fitment】 For JAGUAR XJ8 / XJR (X358) 2007-2009. For JAGUAR XJ8 / XJR (X350) 2003-2007 【Spring Rate】 Front Spring rate: 14 kg/mm (784 lbs/in) & Rear Spring rate: 8kg/mm  (448 lbs/in) with spring preload: 7-10 mm. 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. 【Lowering Kits】 The height adjustable by 1-3 inches, allowing you to have a more aggressive stance. This design helps eliminate turning noise and also improves steering feel and response.(NOTE): These coilovers struts will "Lower your car" and DOES NOT keep to original ride height. 【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.