Megan Racing - BMW M3 (E46) 01-06 – Spec-RS Series Coilovers – MR-CDK-E46M3-RS

Upgrade the handling, suspension response, and chassis control of your BMW E46 M3 with the Megan Racing Spec-RS Series Coilover Suspension System. Designed specifically for the E46 M3 chassis, this advanced suspension system delivers precision damping control, aggressive ride height capability, and race-inspired adjustability for both street and track applications.

The Spec-RS system features 32 levels of independent compression and rebound adjustment, allowing drivers to fine-tune suspension behavior for various driving conditions, tire setups, and alignment configurations. Compression damping is adjusted via external reservoirs to increase oil capacity and improve heat management, while rebound adjustment is easily accessed at the top of each damper for quick, precise tuning.

Ride height is adjusted independently from spring preload through CNC-machined locking spring perches and adjustable shock body length. This design maintains full suspension travel while allowing accurate corner balancing and aggressive lowering without compromising damper stroke.

For strut-type suspension applications, the Spec-RS kit includes pillow-ball upper mounts with integrated front camber plates, enabling precise camber adjustment to improve steering response, turn-in sharpness, and tire contact under load. Built with high-strength steel dampers, aluminum rear brackets, and SAE-9254 cold-wound springs tested beyond 500,000 compression cycles, this system is engineered for durability, consistency, and high-performance driving.

Key Features:

• Independent Compression & Rebound Adjustment: 32-step damping control for precise suspension tuning
• External Reservoirs: Increased oil capacity with separate compression adjustment
• Top-Mounted Rebound Adjustment: Fast and accessible tuning
• Independent Ride Height Adjustment: Shock length adjusts separately from spring preload
• Pillow-Ball Upper Mounts: Reduces deflection and sharpens steering feel
• Front Camber Plates: Allows aggressive alignment and track-focused tuning
• Dual-Cylinder Damper Design: Improves damping consistency under load
• High-Strength Construction: Steel front brackets with aluminum rear brackets
• Complete Hardware Included: Ready for direct bolt-on installation

Spring Rates:

• Front: 8 kg/mm
• Rear: 12 kg/mm

Damper Adjustment Guide:

• 1–8: Track use
• 9–16: Mountain / aggressive driving
• 17–32: Street driving

Fitment:

• BMW M3 E46 (2001–2006)

Important Notes:

• This coilover system cannot be adjusted to stock ride height
• Designed for aggressive lowering and performance-oriented suspension setups

Part Number:

• MR-CDK-E46M3-RS