RS-R, the number one aftermarket spring manufacturer in Japan is proud to bring their technology and know-how to the US. Though all springs may look like they are the same, their performance is not. And because RS-R takes into account that every model of car has its own characteristics, the lowering springs ensure more than just the look you desire. Now available in the US, RS-R currently offers two types of lowering springs in the US, the Down Sus, and the Super Down.
The Super down provides a lowered stance and improved handling to fulfill your needs to lower your car and improve its handling. Taking into consideration the factory suspension geometry, shock dampening, spring rate and ride height levels, RS-R ensures that the springs you are getting were made for your car both for performance and for comfort.

Compatibility:
2014-2015 Lexus IS 250 AWD/RWD
2014-2020 Lexus IS 350 AWD/RWD
2016-2020 Lexus IS 300 AWD
2018-2020 Lexus IS 300 RWD
2016-2017 Lexus IS 200t RWD
Chassis code:
GSE30/31
GSE36
ASE30
Specifications:
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 IS200t
Approximate Drop:
Front:-45mm to -50mm (-1.8inch to -2.0inch)
Rear:-35mm to -40mm (-1.4inch to -1.6inch)
Spring Rates:
Front:5.10kg/mm
Rear:8.16kg/mm