Flatout Suspension 08-23 Dodge Challenger V8 [GR40] GR4-0823CHALLENGER8

DISCLAIMER: This is a made to order item. The lead time for this product is 4-8 weeks.

Flatout GR40 Coilovers for 2008-2023 Dodge Challenger V8

The Flatout GR40 Coilovers deliver the perfect balance between daily driving comfort and rally-inspired performance. Designed for Dodge Challenger V8 owners seeking extra ground clearance and durability, these coilovers provide a 1–3 inch lift over stock ride height, giving you the clearance you need for performance driving, light off-road adventures, or rally-style handling—all without sacrificing smooth pavement performance.

Built with inverted front shocks for strength and external reservoir rear shocks for endurance, the GR40 system handles aggressive driving with confidence. Proprietary off-road valving and bypass pistons make the ride softer at low speeds for comfort, and firmer at high speeds for ultimate control.

Key Features

• 1–3” Lift Over Stock – Increased clearance for performance driving or light off-road use

• Inverted Front Shocks – Maximum strength and stability under extreme conditions

• External Reservoir Rear Shocks – Improved cooling and fade resistance during extended use

• Proprietary Off-Road Valving – Bypass pistons soften low-speed comfort and firm high-speed control

• Soft Rate LPS 2.5 ID Linear Springs – Smooth daily ride without compromising performance

• OEM-Style Top Mounts – Quiet operation with reduced NVH

• Electroplated Shock Bodies – 7–10 years of corrosion resistance

• Rebuildable Shock Design – Long-term serviceability and tuning

• 1-Way Rebound Adjustable – 20 points of tuning to dial in ride preference

• 3-Year Warranty – Confidence in durability and reliability

Why Choose GR40?

Daily Driver Ready – Smooth and controlled on pavement for everyday driving.

Rally Proven – Inverted shocks and external reservoirs handle aggressive driving and performance scenarios.

All-in-One Lift Kit – Replaces stock suspension completely—no spacer lifts or mixed spring/shock setups required.

Customizable Performance – Adjust spring rates and damping to match your build, from stock to fully loaded performance setups.

Durability Guaranteed – Premium finishes, rebuildable design, and corrosion resistance for years of use.

FITMENT

2008–2023 Dodge Challenger V8 – Compatible with FWD/AWD and all trim levels

The Flatout GR40 Coilovers are the ultimate upgrade for Dodge Challenger V8 owners seeking rally-level durability, daily comfort, and a lift that’s fully adjustable and rebuildable for long-term performance.