RS-R Sports-i Coilovers for 2025-2026 Toyota Crown Signia AWD

Tune ride height and damping without giving up daily comfort

RS-R XBIT973M pairs vehicle-specific monotube dampers with matched springs and 36-way damping adjustment for drivers who want a lower, more responsive Crown Signia while retaining street-focused ride quality.

Key Features

• RS-R XBIT973M: Vehicle-specific Sports-i monotube coilover system balances street comfort with responsive handling
• Up to 36 damping settings allow compression and rebound response to be fine-tuned together
• Recommended lowering is approximately 45-50 mm front and 50-55 mm rear
• Front adjustment range is approximately 10-100 mm lower than stock, with a recommended 25-70 mm range
• Rear adjustment range is approximately 35-75 mm lower than stock
• Matched spring rates are 7.0 kg/mm front and 8.0 kg/mm rear
• Urethane bushings, rubber isolation pads, and roller-bearing spring perches help control noise and vibration
• Vehicle-specific brackets and damper valving are assembled for the Crown Signia application

Fitment

Use RS-R XBIT973M only for the applications below. Confirm every listed qualifier and exclusion.

Specifications

What's Included

• Front Sports-i coilover assemblies for RS-R the listed part number for RS-R XBIT973M
• Rear dampers and matched rear springs
• Vehicle-specific mounting components supplied by RS-R
• Not included: Factory rear upper mounts, which must be reused
• Not included: Alignment service
• Not included: Installation labor and vehicle-specific replacement hardware not supplied with the kit

About RS-R

RS-R develops application-specific suspension systems in Japan and supports North American vehicles through RS-R USA. The Sports-i line uses matched springs, monotube dampers, and vehicle-specific valving to combine adjustable performance with everyday usability.

Related Parts

• Pair this kit only with alignment components and replacement mounts explicitly verified for the 2025-2026 Crown Signia AWD suspension; the factory rear upper mounts remain part of the installation.

FAQ

It is an RS-R Sports-i monotube coilover suspension kit developed for the listed Toyota Crown Signia AWD application.

The recommended setting is approximately 45-50 mm lower in front and 50-55 mm lower in the rear, with broader adjustment ranges available.

Yes. The dampers provide up to 36 adjustment settings so ride response can be tuned for road conditions and driver preference.

The documented rates are 7.0 kg/mm in front and 8.0 kg/mm in the rear.

No. Installation requires reuse of the vehicle's factory rear upper mounts.

No other Crown body style is verified. This listing is limited to the documented Crown Signia AWD application.

A professional four-wheel alignment is strongly recommended after ride height is set because suspension geometry changes when the vehicle is lowered.

RS-R lists a one-year warranty, subject to the manufacturer's current terms and installation requirements.

Installation Instructions

1. Confirm the vehicle is a supported 2025-2026 Toyota Crown Signia AWD and review the current RS-R instructions before disassembly.
2. Measure the original ride height at all four corners, support the vehicle securely, and remove the factory suspension using Toyota service procedures.
3. Transfer the factory rear upper mounts to the supplied rear dampers and install the matched springs and dampers in their correct front and rear positions.
4. Set initial ride height within RS-R's recommended range, keep adequate tire and chassis clearance, and torque every fastener at the specified suspension position.
5. Set all damping adjusters evenly for the initial road test, verify hose, brake-line, wheel, and body clearance through steering and suspension travel, then perform a four-wheel alignment.
6. Recheck ride height and fastener torque after the initial settling period and adjust damping in equal increments while monitoring tire clearance and ride quality.