Application2004-2010 compatible for Chrysler 300/300C compatible for SRT 2WD Coilovers KitSpecificationQuantity:- 2 front+2 rear shocks- 2 front springs+2 rear springs- C- Spanner for adjustment- Front Bump stops and dust coversLowering Range: -Rear Height Range: 1\'\'-1.5\'\' / 26mm-36mm-Front Height Range: 1.2\'\'-1.6\'\' / 30mm-40mmSpring Rate Front: 5 kg/mm (280 lbs/in)Spring Rate Rear: 9 kg/mm (504 lbs/in)Color: GoldenHeight adjustable: YesWarranty: one year for any manufacturing defectFeature- Adjustable ride height.- 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.- Improve your handling performance without sacrifice comfortable ride.- All inserts come with fitted rubber boots to protect the damper and keep clean.- 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.Note- No instruction included; Professional installation alignment suggested.- Please check our store for other auto parts you may be interested in.- Please feel free to contact us for whatever we can help.