AST Suspension 5100 Competition 1-way Adjustable Inverted Coilovers - Porsche 996 Carrera 4 | 4S | Turbo

AST Suspension 5100 Competition 1-Way Adjustable Inverted Coilovers

Porsche 911 (996) Carrera 4 | Carrera 4S | Turbo (4WD)  / 1997 - 2005

The AST Suspension 5100 Competition Coilover Kit is a high-performance suspension solution developed for Porsche 996 all-wheel-drive models, delivering exceptional control, precision, and feedback on both road and track. Featuring an inverted monotube damper design, the 5100 kit offers increased strength, improved heat management, and consistent damping performance under demanding conditions.

With 1-way adjustable damping, drivers can fine-tune rebound characteristics to suit driving style, road use, or circuit work. Designed for enthusiasts who demand confidence-inspiring handling without compromising durability, the AST 5100 Competition system is a proven upgrade for spirited road driving and track-focused builds.

Technical Specification

• Vehicle Compatibility:

  • Porsche 911 (996) Carrera 4

  • Porsche 911 (996) Carrera 4S

  • Porsche 911 (996) Turbo ( Rear Droplink Included )
    (4WD models only)

• Suspension Type: Coilover kit (front & rear)

• Damper Design: Inverted monotube

• Adjustment: 1-way adjustable (rebound)

• Application: Fast road & track use

• Ride Height Adjustment: Yes

• Construction: High-strength steel bodies with motorsport-grade internals

• Damping Characteristics: Precision-valved for Porsche chassis balance

• Supply: Complete vehicle set

• Fully rebuildable design: AST Moton suspension can be completely disassembled, serviced, and rebuilt, extending service life and allowing re-valving or refurbishment to restore like-new performance rather than replacement.
  
  

  • Upgrading: AST 5100/5200/5300 “5000-series” dampers are built modularly and can be upgraded, but what’s involved depends on which step you’re taking and your exact Porsche chassis/kit spec.
    
    

    • 5100 → 5200 or 5300: Generally possible by sending the dampers to an authorized AST rebuild/upgrade center to add the required internals and remote reservoirs (and associated hardware). This “upgrade path” is a commonly stated feature of the AST 5000-series modular design.
      
      

    • 5200 → 5300: Typically the straightforward upgrade (adding the extra compression circuit/adjustment hardware). Many dealers describe the 5200 as a good “start here, upgrade later” option for that reason.
      
      

  For any questions and more details re upgrade options please speak to a member of the team
  
  

• Installation: Professional installation and alignment recommended