What is the difference between a true coilover and a standard shock/spring setup?

A true coilover integrates the spring and damper into a single unit where the spring sits directly on the shock body. This design allows for easier ride height adjustment and often provides more consistent handling compared to separate spring and shock components.

Can I use my stock top mounts with these coilovers?

Yes, the springs included with this AST 5100 Series kit are designed to work with your vehicle's OEM top mounts. This simplifies installation by utilizing existing components.

What does it mean that these dampers are rebuildable?

If any issues arise with the dampers, they can be sent to a certified AST service center for repair. This means you can potentially extend the life of your suspension system rather than needing to replace the entire unit.

Specifications

Brand: AST
Part #: ACU-P2205S
UPC: astACU-P2205S

AST 5100 Series Shock Absorbers Coil Over Porsche 911 997 (2WD)

Name: AST 5100 Series Shock Absorbers Coil Over Porsche 911 997 (2WD)
Brand: AST
SKU: ast-ast-5100-series-shock-absorbers-coil-over-porsche-911-997-2wd-t14-341832
Price: 4808.96 USD
Availability: BackOrder

$4808.96

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2005-2012 Porsche 911. AST 5100 Series coilovers offer 1-way adjustable rebound and ride height for improved grip and handling.

Key Features

Direct fit — verified for 2005-2012 Porsche 911
Monotube dampers — feature a large piston for precise rebound damping control
1-way adjustable — tune both rebound and ride height to match your driving needs
True coilover design — front and rear dampers integrate spring and shock for performance and adjustability
Includes springs — designed to work with your vehicle's OEM top mounts
Rebuildable — dampers can be serviced at a certified AST service center if issues arise

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About this part

Product Details

12 distinct rebound positions are available with the AST 5100 Series coilovers for your 2005-2012 Porsche 911. These are a true coilover setup for both front and rear, meaning the spring and damper are integrated into one unit. This design prioritizes adjustability for both damping settings and ride height, giving you more control over your car's handling and grip.

The AST 5100 STREET TCO SUSPENSION system uses monotube dampers. This design has a larger piston for better control of rebound damping. Monotube dampers also prevent aeration and foaming, leading to more responsive valving. The included springs are designed to work with your car's OEM top mounts. These dampers are rebuildable through a certified AST service center.