Dežru Spec-S • Street & Touring 05-11 Audi A6 Coilover System

Balanced daily comfort with real back-road capability.

Designed to lower your car by approximately 25–30 mm while maintaining composure over real-world roads, the Spec-S sharpens turn-in and body control without beating you up on the commute.

Inverted monotube shocks Nickel-plated shock bodies Vehicle Specific Spring Rates

Dežru Spec-S Coilovers – 2005–2011 Audi A6

The Dežru Spec-S coilover system is engineered specifically for the 2005–2011 Audi A6, a heavier and more refined chassis that benefits tremendously from modern damping control and properly matched spring rates. Designed around the A6’s suspension geometry and weight distribution, the Spec-S delivers improved stability, composure, and confidence without sacrificing everyday comfort.

Developed for drivers who daily their A6 but still enjoy spirited street driving and occasional HPDE track days, the Spec-S features digressive piston valving that provides strong low-speed chassis support during braking, turn-in, and transitions, while remaining compliant over rough pavement and surface imperfections. Rather than chasing extreme stiffness, this setup targets a balanced ride frequency in the ~1.9–2.2 Hz range, improving control and feedback while keeping the car livable on real roads.

Fixed-length damper bodies paired with a 25–30 mm adjustable lowered ride height ensure proper suspension stroke and geometry are preserved. This approach maintains usable bump travel and predictable roll behavior, allowing the A6 to remain stable and confidence-inspiring during both daily driving and aggressive use.

Key Features

Digressive monotube dampers for controlled body motion, consistent damping performance, and clear driver feedback.
Fixed-length damper bodies with 25–30 mm adjustable lowered ride height to preserve suspension geometry and usable travel.
Adjustable damping to fine-tune rebound for daily driving, back roads, or HPDE track events.
500 lb/in front and 700 lb/in rear spring rates, selected to improve platform control while maintaining compliance on the A6 chassis.
Linear HyperCoil springs for predictable load transfer and smooth, consistent response throughout suspension travel.
OEM-style upper mounts to reduce NVH while maintaining proper fitment and alignment consistency.
Hand-built, dyno-matched pairs to ensure precise left-to-right damping consistency.

Performance Character

The Spec-S transforms the Audi A6 by reducing excessive body motion and improving stability without sacrificing ride quality. The digressive damping profile provides firm, supportive control during initial inputs and transitions, paired with controlled compliance that keeps the tires planted as grip levels increase.

The result is a composed, predictable, and confidence-inspiring driving experience that remains comfortable for daily use, yet stable and responsive when pushed hard.

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.