REV9 Kia Optima (JF) 2016-20 Hyper-Street ONE Coilovers Lowering Kit Assembly High-Performance Engines some models may require performance

some models may require performance fans

With higher leg and upper body supports you'll be comfortably seated in the perfect position at all times and in all situations with reduces of the risk from misjudging distance and losing control

 Injector Short Pulse Width Compensation

Knock with "windowing"

Rev9 Hyper-Street ONE Coilovers for Acura ILX (DE1) 2013-15 are designed for tuners on a budget

REV9 Kia Optima (JF) 2016-20 Hyper-Street ONE Coilovers Lowering Kit Assembly High-Performance Engines some models may require performanceRev9 Hyper Street ONE Coilovers for Kia Optima (JF) 2016 20 are designed for tuners on a budget. Engineered to lower your vehicle with the combination of proper lengthen shocks and High tensile springs to work together to provide perfect balance between comfort and performance. Rebuild able Mono Tube shocks with 16 damping force adjustment to help quickly stabilize and keep the wheels on the road when you hit a bump. High tensile springs are made from