Dežru Spec-S • Street & Touring Chevrolet Corvette C6 Coilover System

Balanced daily comfort with real sports car capability.

Designed to lower your Corvette by approximately 25–45 mm while improving chassis control and stability, the Spec-S sharpens response and reduces excess body motion without sacrificing the comfort expected from a street-driven C6.

Digressive monotube dampers Nickel-plated shock bodies Vehicle Specific Spring Rates

Dežru Spec-S Coilovers – Chevrolet Corvette C6 (2005–2013)

The Dežru Spec-S coilover system is engineered specifically for the Chevrolet Corvette C6, a lightweight rear-wheel-drive platform known for its excellent chassis rigidity, rear transaxle balance, and high-performance capability. Designed around the Corvette’s suspension geometry and real-world street use, the Spec-S delivers sharper response, improved body control, and increased driver confidence while remaining refined enough for daily driving.

Developed for drivers who use their Corvette for street driving, canyon roads, spirited weekend use, and occasional autocross or HPDE events, the Spec-S utilizes digressive piston valving that provides strong low-speed chassis support during braking, turn-in, and transitions while maintaining compliance over rough pavement and uneven roads. Rather than relying on excessive spring stiffness, this setup targets a balanced ride frequency in the ~2.0–2.2 Hz range, giving the car a more controlled and responsive feel without introducing unnecessary harshness.

Fixed-length damper bodies paired with a 25–45 mm adjustable lowered ride height help preserve usable suspension stroke and maintain proper geometry. This allows the C6 to remain composed, predictable, and confidence-inspiring during both aggressive driving and everyday use.

Key Features

Digressive monotube dampers for improved body control, consistent damping performance, and clear driver feedback.
Fixed-length damper bodies with 25–45 mm adjustable lowered ride height to preserve suspension geometry and usable suspension travel.
Adjustable damping to fine-tune rebound for street driving, canyon roads, autocross, or occasional HPDE use.
550 lb/in front and 550 lb/in rear spring rates, selected to improve chassis control and steering response while maintaining excellent ride quality and predictability.
Linear HyperCoil springs for smooth, predictable load transfer and consistent response throughout suspension travel.
OEM-style upper mounts help minimize NVH while maintaining proper fitment and real-world drivability.
Hand-built, dyno-matched pairs ensure precise left-to-right damping consistency.

Performance Character

The Spec-S transforms the Corvette C6 by reducing excess body motion and improving chassis composure while preserving the car’s natural balance and usability. The digressive damping profile delivers immediate support during braking and transitions while remaining compliant enough to maintain grip and comfort over imperfect pavement.

Compared to the factory suspension, the Spec-S improves steering response, braking stability, and overall driver confidence while maintaining the ride quality expected from a street-driven performance car.

The result is a Corvette that feels flatter, tighter, and more controlled while still remaining comfortable enough for long drives and regular street use.

Why We Recommend 550 lb/in Front & 550 lb/in Rear for the Corvette C6

The Chevrolet Corvette C6 already has an exceptionally capable chassis from the factory thanks to its lightweight structure, wide track width, and rear transaxle layout. Rather than relying on excessive spring stiffness, our goal with the Spec-S is to sharpen the platform while preserving the confidence and drivability that make the C6 so enjoyable on the street.

The 550 lb/in front spring improves braking support and steering precision while reducing excessive dive and improving turn-in response during aggressive driving.

The matching 550 lb/in rear spring improves rear stability during acceleration and corner exit while maintaining the Corvette’s balanced and predictable handling characteristics.

This combination provides a significant improvement in body control and responsiveness without becoming harsh or overly aggressive for real-world roads. Combined with the Spec-S digressive valving, the chassis feels noticeably tighter and more planted while still maintaining excellent ride quality and tire compliance.

This setup helps the Corvette:

Reduce excess body roll and chassis movement
Improve steering response and braking stability
Increase rear stability during acceleration and transitions
Maintain excellent comfort for daily driving
Deliver sharper handling without excessive harshness

Overall, the 550/550 combination gives the Corvette C6 a more planted, responsive, and confidence-inspiring feel while preserving the refinement and usability expected from a properly balanced street-focused performance suspension.

Dežru Performance Suspension warrants to the original purchaser that these parts manufactured and/or sold by Dežru Performance Suspension (the product) is free from defects in material and workmanship under normal use. Dežru Performance Suspension warrants that the product will perform substantially in accordance with the specifications set forth in the documentation provided with it. The above express warranties are made for a period of the lesser of 12,000 miles or 36 months from the date the product is installed in your vehicle. Any improper use, operation beyond capacity, substitution or addition of parts not approved by Dežru Suspension in writing, any alteration or repair by others, or any removal, defacing or altering of the identification shall void this warranty. There is no warranty on high-performance or race related parts due to the nature of usage.