Fitment Information 2014-2015 Lexus IS250 AWD/RWD 2014, 2015, 2016, 2017, 2018, 2019 Lexus IS350 AWD/RWD 2016, 2017, 2018, 2019 Lexus IS300 AWD 2018, 2019, 2020 Lexus IS300 RWD 2016. 2017 Lexus IS200t RWD Specs & Features Spring Rates: Front 5.10kg/mm Rear 8.16kg/mm True Japanese heritage from the JDM market Performance spring with comfort in mind Includes all 4 springs Designed to work with stock shocks Approximate Drop (AWD): Front: -35mm to -40mm (-1.4inch to -1.6inch) Rear: -35mm to -40mm (-1.4inch to -1.6inch) Approximate Drop (RWD): Front: -45mm to -50mm (-1.8inch to -2.0inch) Rear: -40mm to -45mm (-1.6inch to -1.8inch) Lexus IS200tApproximate Drop: Front: -45mm to -50mm (-1.8inch to -2.0inch) Rear: -35mm to -40mm (-1.4inch to -1.6inch) Product Description True Japanese lowering springs. RS-R is one of the top aftermarket spring manufactures in Japan and is proud to bring their technology to the US.  These authentic JDM lowering springs provide you with both comfort and performance while giving you the lowered stance and much improved handling characteristics that you look for in a lowering spring.  RS-R takes careful consideration of the vehicle these springs were designed for to ensure the factory suspension geometry, shock dampening, spring rate and right height levels are designed for your specific vehicle to give you the best performance and control possible.