How do I adjust the ride height and rebound on these coilovers?

You can adjust the ride height by modifying the spring perch location on the shock body. The rebound damping is adjusted using a knob on the top of the damper, with 12 distinct positions available to fine-tune your car's handling.

Do I need to buy new top mounts for these coilovers?

No, these AST 5100 Series coilovers are designed to work with your Porsche's original OEM top mounts. This means you can reuse your existing hardware, simplifying the installation process.

What does it mean that these dampers are rebuildable?

If any issues arise with the dampers over time, they can be sent to a certified AST service center for repair. This means you can service the shocks instead of replacing the entire unit, potentially saving money in the long run.

Specifications

Brand: AST
Part #: ACU-P2211S
UPC: astACU-P2211S

AST 5100 Series Shock Absorbers Coil Over Porsche 911 996 Turbo (2WD)

Name: AST 5100 Series Shock Absorbers Coil Over Porsche 911 996 Turbo (2WD)
Brand: AST
SKU: ast-ast-5100-series-shock-absorbers-coil-over-porsche-911-996-turbo-2wd-t14-482738
Price: 5146.24 USD
Availability: BackOrder

$5146.24

On Backorder

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

Fits 1999-2005 Porsche 911. AST 5100 Series coilover suspension for improved grip and adjustable ride height and rebound.

Key Features

Direct fit — verified for 1999-2005 Porsche 911
Monotube dampers — feature a large piston for precise rebound damping control
Adjustable ride height and rebound — fine-tune your car's handling and stance
True coilover design — front and rear dampers are integrated coilover units for maximum adjustability
Includes springs — matched to the dampers for optimal performance
Designed for OEM top mounts — uses your factory mounting hardware for easier installation

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About this part

Product Details

The AST 5100 Series uses a monotube damper design. This means a larger piston inside the shock body, which allows for more precise control over the rebound damping. You won't get aeration or foaming like with some twin-tube designs, so the valving stays responsive. The system includes springs and is set up to work with your car's original top mounts, simplifying installation.