REV9 Hyper-Street ONE 16-Way Adjustable Coilovers for Volvo S40 FWD (544) 2005–2012

Part Number: R9-HPX-1168_2
Brand: REV9 Power

Lower Your Volvo. Sharpen Your Handling. Upgrade Your Ride.

Give your Volvo S40 a sportier stance and more responsive handling with the REV9 Hyper-Street ONE Coilover Suspension Kit. Designed for enthusiasts looking for an affordable suspension upgrade, this kit combines adjustable ride height, performance springs, and customizable damping for everyday driving and spirited street performance.

Featuring 16-way adjustable damping, rebuildable monotube shock absorbers, and high-tensile SAE9254 performance springs, the Hyper-Street ONE series delivers a balance of handling performance, ride comfort, and value.

Why Upgrade?

• 16-way adjustable damping from soft to firm

• Rebuildable monotube shock absorbers

• Adjustable ride height for a sportier stance

• Approximately 1–2.5 inches of lowering

• High-tensile SAE9254 performance springs

• Helps reduce body roll and improve cornering response

• Improved suspension control over uneven roads

• Pillow-ball upper mounts where applicable

• Performance-oriented suspension design

• One-year limited manufacturer warranty

• Affordable alternative to more expensive coilover systems

Vehicle Fitment

• 2005–2012 Volvo S40 (544) FWD

Drivetrain: Front-Wheel Drive (FWD) only.

Not listed for AWD models.

Specifications

• Series: Hyper-Street ONE

• Product Type: Adjustable Coilover Suspension Kit

• Shock Design: Rebuildable Monotube

• Damping Adjustment: 16 Levels

• Damping Range: Soft to Firm

• Ride Height Adjustment: Adjustable

• Advertised Lowering Range: Approximately 1–2.5 Inches

• Spring Material: SAE9254 High-Tensile Steel

• Upper Mounts: Pillow-Ball Where Applicable

• Warranty: One-Year Limited Manufacturer Warranty

• Vehicle Platform: Volvo S40 (544)

• Drivetrain Compatibility: FWD Only

Rebuildable Monotube Performance

The REV9 Hyper-Street ONE series features rebuildable monotube shock absorbers engineered to provide responsive damping and improved suspension control.

With 16 adjustable damping settings, drivers can customize suspension response to match road conditions and driving preferences.

Softer settings help provide a more comfortable street-oriented ride, while firmer settings offer additional control during spirited driving and cornering.

The monotube design helps manage suspension movement over uneven surfaces, reducing excessive bouncing when paired with the included performance springs.

High-Tensile Performance Springs

Hyper-Street ONE coilovers utilize SAE9254 high-tensile steel springs engineered for durability and consistent performance.

According to REV9, the springs undergo extensive stress testing to help maintain their performance characteristics under repeated compression.

Paired with properly matched shock absorbers, these springs are designed to improve handling response while maintaining practical street drivability.

Adjustable Ride Height

The adjustable coilover design allows you to customize your Volvo S40's ride height for a more aggressive appearance and lower center of gravity.

Advertised lowering range: Approximately 1–2.5 inches below factory ride height.

Actual lowering capability depends on vehicle configuration and suspension setup.

Important: This kit is designed primarily for lowering applications and is not intended to restore or maintain factory ride-height specifications.

Important Fitment Notice

• Designed for 2005–2012 Volvo S40 (544) FWD

• Not listed for AWD models

• Verify factory suspension configuration before ordering

• Pillow-ball upper mounts are included only where applicable

• Check wheel and tire clearance when lowering the vehicle

• Additional suspension adjustments may be required to achieve the desired ride quality

• Actual lowering range may vary by vehicle configuration

• Manufacturer literature also references lowering up to 3 inches; confirm the maximum supported range for this application before attempting an extreme drop

Installation & Setup

Professional installation is strongly recommended.

• Inspect all suspension components before installation.

• Verify proper mounting points and hardware.

• Set ride height according to manufacturer recommendations.

• Adjust damping settings to suit your driving preferences.

• Confirm adequate suspension travel and wheel clearance.

• Torque all mounting hardware to manufacturer specifications.

• Perform a professional four-wheel alignment after installation.

• Recheck suspension settings and mounting hardware after initial use.

Professional Installation Available

RPM Racing offers professional coilover and suspension installation services.

Contact RPM Racing for installation availability, pricing, and scheduling.

Transform your Volvo S40 FWD with REV9 Hyper-Street ONE coilovers for an aggressive lowered stance, improved handling, and adjustable suspension performance at an affordable price.