【Compatibility】- Evil Energy coilovers are compatible for Kia Optima 2011 2012 2013 2014 2015. Please verify your vehicle fitment before purchasing. Professional installation is highly recommended.
【1 - 3 inches Height Adjustable】- The coil suspension kit reduces the chassis height of the car, allowing you to have a more aggressive stance, which helps eliminate turning noise and improve steering feel and response, enhancing its handling, stability and performance.
【Extremely Durable Coil Spring】- Heat-treated high-strength steel spring with anti-corrosion coating features extraordinary elasticity and durability. Spring rate Front: 6 kg/mm & Spring rate Rear: 8 kg/mm. Spring length Front:193mm & Spring length Rear:194mm. Coilover overall length Front (longest):486mm & Coilover overall length Rear (longest): 508mm.
【Twin-Tube Structure】- Compared to mono-tube structures, twin-tube ones minimize friction to attain sufficient strokes with less effort, and is more stable during driving on undulating roads, and more comfortable for long-term driving.
【Premium Materials for Superior Quality】- The steel body ensures the overall strength and durability. The camber plate top mount, spring, lower mount, piston rod which are all steel, can maintain a powerful abrasion performance during movement. High quality precision parts, worry-free installation.