The Superdown provides a lowered stance and improved handling to fulfill your needs to lower your 2021+ Lexus IS 300/350 (AWD) 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.

Approximate Drop

Front: -40mm to -45mm (-1.6in to -1.8in)
Rear: -45mm to -50mm (-1.8in to -2.0in)

Spring Rate

Front: 5.20kg/mm
Rear: 8.67kg/mm

Additional Information

Includes replacement front bump stops
Warranty: 3 Years / 36,000 miles from the day of purchase