Fitment Information Lexus IS250 (2014, 2015) Lexus IS350 (2014, 2015, 2016, 2017, 2018, 2019, 2020) Lexus IS200t (2016, 2017) Lexus IS300 (2018, 2019, 2020) RWD only Specs & Features Spring Rates: Front 5.48kg/mm Rear 8.98kg/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 (IS250 / IS350 RWD): Front -30mm to -35mm (-1.2in to -1.4in) Rear -25mm to -30mm (-1.0in to -1.2in) Approximate Drop (IS200t RWD): Front -30mm to -35mm (1.2in to -1.4in) Rear -20mm to -25mm (0.8in to -1.0in) 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.