RS-R T299D Down Sus Lowering Springs for 2016-2022 Lexus RX450h AWD

Vehicle Fitment

• 2016-2022 Lexus RX450h, AWD

Fitment Notes

• AWD only - confirm drivetrain before ordering; front-wheel-drive RX450h models may require a different RS-R part number
• Designed to work with stock shocks - no strut or shock replacement required for installation
• F-Sport trim may use a different drop specification than the standard trim - verify with your dealer if your RX450h is an F-Sport model before ordering
• Not an emissions-related item

Features

• Provides a mild drop and improved handling to reduce fender-to-wheel gap
• Engineered specifically around the RX450h's factory suspension geometry, shock damping, and ride height, accounting for the hybrid powertrain's added weight
• True Japanese-manufactured lowering springs from one of Japan's leading aftermarket spring makers
• Balances a lowered stance and sharper handling with retained everyday ride comfort
• Direct bolt-on replacement for the factory springs; no cutting or modification required
• Includes all four springs (front pair and rear pair) for a complete installation

Specifications

• Part Number: T299D
• Brand: RS-R
• Front Lowering: -35mm to -40mm (-1.4in to -1.6in)
• Rear Lowering: -25mm to -30mm (-1.0in to -1.2in)
• Front Spring Rate: 4.60 kg/mm
• Rear Spring Rate: 4.65 kg/mm
• Warranty: 3 Years / 36,000 Miles

Included Components

• 2x Front Lowering Springs
• 2x Rear Lowering Springs

Product Description

The RS-R T299D Down Sus lowering springs are engineered specifically for the 2016-2022 Lexus RX450h AWD, delivering a more pronounced -35mm to -40mm (-1.4in to -1.6in) drop up front and a -25mm to -30mm (-1.0in to -1.2in) drop at the rear. RS-R tunes the drop and spring rate around the RX450h's factory suspension geometry and the added weight of its hybrid powertrain, rather than applying a generic drop figure across unrelated models.

A front spring rate of 4.60 kg/mm pairs closely with a 4.65 kg/mm rear rate for balanced, predictable handling that tightens up body roll while keeping the ride composed for daily driving. These are true Japanese-manufactured springs, designed to work with the factory shocks - no strut or shock replacement is needed for installation, keeping this a straightforward bolt-on upgrade.

This kit includes all four springs - front pair and rear pair - for a complete installation, and is backed by RS-R's 3-year, 36,000-mile warranty. This spring is for AWD RX450h models specifically; owners should also confirm whether their vehicle is a standard or F-Sport trim, as F-Sport models may call for a different RS-R part number tuned to that trim's suspension.