IntroductionA coilover is an automobile suspension device. Thanks to built-in adjustability, coilovers offer the ability to be shortened or lengthened - lowering or raising the ride height of your vehicle through manual adjustment, without complex electronics or hydraulics. A coilover kit consists of a damper and a shock absorber with a coil spring around it. Maxpeedingrods provides performance aftermarket height adjustable coilovers suspension kit compatible for Nissan series. You can enjoy a comfortable riding experience in all road conditions.Application-Compatible for Nissan Altima 2002 - 2006-For Maxima 2004 - 2008Specification-Quantity: 2 piece front + 2 pieces rear + 2 spanners-Spring rate Front:8 kg/mm (448 lbs/in)-Spring rate Rear:3.5 kg/mm (196 lbs/in)-Damper: Non adjustable Damper-Adjustable height: Yes，lowering 1\" to 3\"-Camber plate / top mounts: Front only & Adjustable-Shock type: Twin tube-Spring Preload: 7-10 mm-Color: Golden-Warranty: one year warranty for any manufacturing defectFeatures- Adjustable ride height.- Adjustable pre-load spring tension.- Pillow ball top mount -- this design helps combat noise while tuning. It also improves the steering feel and response.- 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 keep clean.- Improve your handling performance without sacrifice comfortable ride.- A fast and affordable way to easily upgrade your car\'s appearance.- Easy installation with right tools.- Ideal for any track, drift and fast road and can also be used for daily driving.Notice- No instruction included; Professional installation is highly recommended.- Please check our store for other auto parts you may be interested in.- Please feel free to contact us for whatever we can help.