ApplicationCompatiblefor 2005-2010 compatible for Chrysler 300CCompatible for 2008-2010 compatible for Dodge Challenger Challenger SRT8Compatible for 2006-2010 compatible for Dodge Charger SRT8Compatible for 2005-2008 compatible for Dodge Magnum Specification Daily driver, occasional autocross day or occasional track daysProduct included: complete coilovers 2 front and 2 rear/ a pair wrench for height adjustmentTop mounts:pillow ball top mountsCamber plate：NODampening: 24 levels rebound dampening adjustableSpring rate: front：12 kg/mm (672 lbs/in)；rear：14 kg/mm (784 lbs/in)weight: 29820g; size:71*51*21cmAdjustable height: Yes loweing 1\'\' to 3\'\'Shock type：Twin tubeSpring Preload: 7-10 mmColor：goldenWarranty: 1 year Feature- Able to lower ride height by 1\'\'-3\'\'; allows user to have a more aggressive stance.- Coilovers are 24-way adjustable. Rebound and Dampening adjustment which allows the user the ability to dial in your coilovers to any driving needs. The user can enjoy a comfortable riding experience in all road conditions.- Pillow ball top mount -- this design helps combat noise while tuning. It also improves the steering feel and response.- Twin-Tube Shock design is used for low internal frictional resistance in order to increase efficiency and keep shock temps low.- Height adjustment does not sacrifice damper stroke length.- These coilovers are able to have their height adjusted without being taken out of the car.- Most components of the suspension parts are made from 6061-T6 aluminum to increase strength and rigidity.- High Tensile strength performance spring---Tested under a 600,000 time continuous compression test, the spring distortion was less than 0.04%. Plus, the special surface treatment improves the durability and performance.- Adjustment tools included in the kit. Notice* 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.