Dežru Spec-RS • Track First Porsche 997 Carrera 4 (2005–2013)

Built for precision, consistency, and confidence at the limit.

Engineered around aggressive track demands, the Spec-RS delivers elevated damping authority, sharper response, and heat-resistant performance to keep your 997 composed through long sessions and repeat hot laps.

Digressive pistons (track-focused) Heat-resistant valving Sharpened transient response Tuned for 997 chassis dynamics

Dežru Spec-RS Coilovers – Porsche 997

The Dežru Spec-RS coilover system is engineered to complement the unique character of the Porsche 997 chassis, a rear-engine platform known for its exceptional steering feel and demanding balance requirements. Designed specifically around the 997’s suspension geometry and weight distribution, the Spec-RS delivers modern, motorsport-inspired damping control while preserving the car’s trademark feedback and confidence.

Developed for serious street drivers and track-focused enthusiasts, the Spec-RS utilizes digressive piston valving to provide strong low-speed chassis support during braking, turn-in, and transitions, while remaining composed and compliant over imperfect surfaces. This balance allows the 997 to feel planted and predictable without becoming nervous or harsh at the limit.

Fixed-length damper bodies paired with a 30–45 mm adjustable lowered ride height ensure proper suspension stroke and geometry are maintained. This approach preserves bump travel and roll center behavior, allowing the 997 to remain stable and confidence-inspiring during aggressive driving.

Key Features

Digressive monotube dampers for precise control, consistent damping behavior, and clear driver feedback.
Fixed-length damper bodies with 30–45 mm adjustable lowered ride height to maintain proper suspension geometry and usable stroke.
Adjustable damping to fine-tune rebound for street driving, canyon roads, or dedicated track use.
250 lb/in front and 450 lb/in rear spring rates, carefully selected to balance front-end bite with rear stability on the rear-engine 997 platform.
Linear HyperCoil springs for predictable load transfer and smooth response throughout the suspension travel.
Pillowball front top mounts for improved steering precision, alignment accuracy, and consistent feedback.
Hand-built, dyno-matched pairs to ensure precise left-to-right damping consistency.

Performance Character

The Spec-RS enhances the Porsche 997’s natural steering feel while adding a higher level of chassis control and composure under braking, mid-corner loading, and corner exit. The digressive damping profile delivers firm, supportive control during initial inputs, paired with controlled compliance that maintains traction and confidence as grip levels rise.

The result is a flat, stable, and communicative driving experience, with improved front-end response and a planted rear that allows power to be applied smoothly and predictably on both road and track.

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.