RS-R XBIT595M Sports-i Coilover Suspension Kit for 21-25 Lexus IS300/IS350 AWD

Vehicle Fitment

• 2021-2025 Lexus IS300 AWD (GSE36L; turbocharged I4 or 3.5 L V6; AWD)
• 2021-2025 Lexus IS350 AWD (GSE36L; 3.5 L V6; AWD)

Fitment Notes

• Sports-i coilover kit for AWD chassis only (GSE36L)
• Will disable factory Adaptive Variable Suspension (AVS)
• Requires manual ride-height adjustment--no automatic damping control

Features

• Preset ride height: -45 mm to -50 mm front & rear (~1.8" drop)
• Height-adjustment range: front 0 mm to -80 mm; rear -20 mm to -70 mm
• Spring rates: front ~8.00 kg/mm; rear ~9.00 kg/mm
• Durable damper design tailored for spirited street/track driving
• Maintains OEM ride quality within adjustment range
• All-new dampers and springs--no reuse of OEM hardware
• Engineered by RS-R in their Sports-i series for balance of comfort and performance
• One-year or 12,000-mile warranty included

Specifications

• Front drop: approx. 45 mm; rear drop: approx. 45 mm
• Max adjustment travel: front up to -80 mm; rear up to -70 mm
• Spring rates: 8.00 kg/mm (front), 9.00 kg/mm (rear)
• Includes ride-height adjustment per damper (no dampening adjust.)
• Chassis code: GSE36L AWD with VR-series engines

Included Components

• 4x Sports-i coilover assemblies (front & rear)
• Adjustment spanner wrenches and locking rings
• Installation instructions and mounting hardware

Product Description

The RS-R XBIT595M Sports-i coilover kit is engineered specifically for the AW-drive Lexus IS300 and IS350 (GSE36L chassis) built from 2021 through 2025. Tailored for enthusiasts seeking enhanced handling and lowered stance, it delivers a preset drop of about 45 mm front and rear, with a wide adjustment range to fine-tune ride height and comfort.

Featuring fixed-valving dampers matched to progressive-rate springs (8 kg/mm front, 9 kg/mm rear), the Sports-i setup improves cornering, reduces body roll, and sharpens response--all while retaining ride comfort for daily use. Installation disables factory AVS but maintains excellent stability for drivers wanting a street-to-track coilover upgrade backed by RS-R's durability and a full warranty.