RS-R T595D Down Sus Lowering Springs 1.0" Drop for 21-25 Lexus IS300/IS350 AWD

Vehicle Fitment

• 2021-2025 Lexus IS300 AWD (GSE36L)
• 2021-2025 Lexus IS350 AWD (GSE36L)

Fitment Notes

• AWD models ONLY -- does NOT fit RWD (use T591D for RWD)
• Chassis code: GSE36L
• Down Sus series -- mild drop for improved stance and handling
• For more aggressive drop: RS-R Super Down T595S (1.6"-2.0" drop)
• Professional installation by ASE-certified mechanic required for warranty
• Alignment recommended after installation
• Designed for use with factory shocks/struts

Features

• RS-R Down Sus lowering spring set
• Mild drop with improved handling
• Reduces fender-to-wheel gap
• Engineered to factory suspension geometry and shock dampening
• Maintains ride comfort while improving cornering response
• Reduces body roll
• Made in Japan

Specifications

• Part Number: T595D
• Brand: RS-R (Racing Studio-R)
• Series: Down Sus
• Type: Lowering spring set (front and rear)
• Front Drop: -25mm to -30mm (-1.0" to -1.2")
• Rear Drop: -20mm to -25mm (-0.8" to -1.0")
• Front Spring Rate: 5.05 kg/mm
• Rear Spring Rate: 8.16 kg/mm
• Chassis Code: GSE36L
• Country of Origin: Japan
• Warranty: 3 years / 36,000 miles

Included Components

• 2x Front lowering springs
• 2x Rear lowering springs

Product Description

The RS-R T595D is a Down Sus lowering spring set for the 2021-2025 Lexus IS300 and IS350 AWD (chassis code GSE36L). The Down Sus series provides a mild drop of approximately 1.0"-1.2" in the front and 0.8"-1.0" in the rear, reducing the fender-to-wheel gap for a more aggressive stance while maintaining excellent ride comfort. Spring rates are set at 5.05 kg/mm front and 8.16 kg/mm rear -- carefully tuned to the factory suspension geometry, shock dampening, and ride height levels to ensure the springs work harmoniously with the stock dampers.

RS-R (Racing Studio-R) has been manufacturing precision-engineered suspension products in Osaka, Japan since 1980, with extensive development through motorsports competition including Super GT, drift, rally, and drag racing. The Down Sus series is designed for drivers who want improved handling and reduced body roll without sacrificing daily drivability. For a more aggressive drop, RS-R offers the Super Down T595S with 1.6"-1.8" front and 1.8"-2.0" rear drop. RWD IS300/IS350 owners should order T591D instead. Professional installation by an ASE-certified mechanic is required for warranty coverage. Backed by RS-R's 3-year / 36,000-mile limited warranty.