What is the benefit of a monotube damper design?

Monotube dampers use a larger piston for better control of rebound damping. They also prevent aeration and foaming, which leads to more responsive valving and consistent performance, even under hard driving.

Can I adjust the stiffness of the ride?

Yes, these coilovers feature 1-way adjustable rebound damping with 12 distinct positions. This allows you to fine-tune the return stroke of the dampers to achieve your preferred road balance and driving feel.

Do I need to buy new top mounts for installation?

No, the springs included with this AST 5100 Series coilover set are designed to work with your vehicle's original equipment (OEM) top mounts. This simplifies the installation process.

Specifications

Brand: AST
Part #: ACU-P2209S
UPC: astACU-P2209S

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-t14-341833
Price: 5222.40 USD
Availability: BackOrder

$5222.40

On Backorder

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

Fits 2007-2011 Porsche 911. AST 5100 Series coilovers offer adjustable rebound and ride height for improved grip and handling.

Key Features

Direct fit — verified for 2007-2011 Porsche 911 (2WD)
1-way adjustable rebound damping — 12 distinct positions for fine-tuning.
Adjustable ride height — allows you to set your vehicle's stance.
Monotube damper design — provides responsive valving and consistent performance.
Includes springs — designed to work with OEM top mounts.
Front and rear dampers are true coilovers — offers greater adjustability.

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About this part

Product Details

Worn-out suspension causes poor road balance and reduced grip. The AST 5100 Series Coilover Suspension is a direct fix for your 2007-2011 Porsche 911 (2WD). These are well-built coilovers designed to maximize your car's grip by controlling rebound and ride height.

AST Suspension uses a monotube design for these dampers. This means a larger piston can be used to control rebound damping, and there's no aeration or foaming. This results in more responsive valving and consistent performance, especially under demanding driving conditions. The springs are included and designed to work with your car's OEM top mounts.