Description
The Dežru Spec-S Coilover System is engineered for the Audi A6 C7, providing a performance-focused suspension upgrade designed to improve chassis control, stability, and driver confidence while retaining everyday usability. Developed for drivers who daily their A6 but also enjoy spirited street driving and occasional HPDE track days, the Spec-S aims to deliver a more composed and responsive driving experience without losing sight of the refinement expected from a luxury sedan.
Featuring digressive monotube dampers, the Spec-S is designed to provide controlled body movement during braking, cornering, and rapid directional transitions while maintaining compliance over uneven pavement and expansion joints. Its damping characteristics prioritize low-speed chassis support to help the vehicle feel more controlled during steering inputs and changes in load. The system targets a ride frequency of approximately 1.9–2.2 Hz, aiming to balance suspension control with everyday comfort.
The fixed-length damper bodies are paired with an adjustable lowered ride height of approximately 25–30 mm, providing a lower stance while targeting appropriate suspension travel within the intended operating range. Combined with linear HyperCoil springs and OEM-style upper mounts, the Spec-S offers a suspension package designed for daily driving and occasional performance use.
With 450 lb/in front and 650 lb/in rear spring rates, this configuration is intended to provide additional suspension support and a more controlled chassis response. The linear springs work with the digressive dampers to deliver predictable suspension behavior during braking, cornering, and rapid transitions.
Key Features
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Digressive monotube dampers: Designed to control body movement and provide consistent damping performance and driver feedback.
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Fixed-length damper bodies: Engineered to work with the intended lowered ride-height range.
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Adjustable ride height: Approximately 25–30 mm of lowering for a lower stance and performance-oriented setup.
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Adjustable damping: Allows suspension response to be fine-tuned for daily driving, back roads, and HPDE sessions.
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450 lb/in front spring rate: Designed to provide front suspension support during braking and cornering.
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650 lb/in rear spring rate: Provides substantial rear spring support for performance-focused suspension tuning.
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Linear HyperCoil springs: Deliver consistent spring response throughout suspension travel.
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OEM-style upper mounts: Retain a factory-style mounting configuration and aim to limit additional noise and vibration.
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Hand-built, dyno-matched dampers: Designed to provide consistent damping characteristics across matched components.
Performance Character
The Dežru Spec-S is designed to improve the Audi A6 C7's composure by providing more controlled suspension response during braking, cornering, and directional transitions. Its digressive damping profile aims to provide support during initial steering inputs while maintaining compliance over imperfect road surfaces.
The 450 lb/in front and 650 lb/in rear spring combination creates a firm, performance-oriented setup intended to provide additional suspension support. The front spring rate targets controlled response during braking and turn-in, while the rear rate contributes to the overall suspension balance.
Actual handling characteristics depend on suspension geometry, spring mounting locations, drivetrain configuration, alignment, tire selection, and damping adjustments. Proper setup is important for achieving the desired balance between everyday comfort and performance driving.
The result is a suspension package aimed at Audi A6 owners seeking a lower stance, more controlled handling, and a more connected driving experience for street use and occasional track events.
Why Choose 450 lb/in Front and 650 lb/in Rear Springs?
The Audi A6 C7 combines luxury-oriented comfort with the potential for confident performance driving. The Dežru Spec-S uses 450 lb/in front and 650 lb/in rear springs to create a firm, performance-focused suspension configuration.
Front suspension — 450 lb/in
The front spring rate is intended to provide additional support during braking and corner entry. It contributes to front-end response and helps the suspension manage changes in load during cornering.
Rear suspension — 650 lb/in
The rear spring rate provides substantial spring support intended to control suspension compression under load. Its effect on acceleration squat, traction, and cornering balance depends on the C7's suspension geometry, spring mounting arrangement, drivetrain, and damping settings.
Matched spring and damper performance
Spring rates alone do not determine handling balance. The Spec-S combines linear HyperCoil springs with digressive damping designed to control body motion and provide consistent suspension response. Correct damping adjustment and alignment remain important for achieving predictable handling across different road and track conditions.
This setup is intended for drivers who prefer a more controlled, performance-oriented suspension character rather than a soft, comfort-first ride.
Who Is the Dežru Spec-S For?
The Dežru Spec-S is intended for Audi A6 C7 owners seeking a performance-focused suspension setup for:
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Daily driving with a firmer, more controlled ride
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Spirited street and back-road driving
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Improved chassis support during braking and cornering
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Occasional HPDE and performance driving events
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A lowered stance with adjustable damping
Vehicle Fitment
Vehicle: Audi A6 C7
Model years: 2012–2018, subject to manufacturer-confirmed fitment
Ride-height adjustment: Approximately 25–30 mm lower
Spring rates: 450 lb/in front / 650 lb/in rear
Important fitment note: Confirm compatibility with the exact model year, engine, trim, and drivetrain before publishing or purchasing. Do not assume compatibility across all quattro and front-wheel-drive variants, performance trims, or different suspension configurations without manufacturer confirmation.
Disclaimer: This product is built to order. Please allow approximately 3–4 weeks for production before shipment.
