How do I adjust the rebound and compression settings?

The AST 5200 Series coilovers feature external reservoirs. These reservoirs allow you to independently adjust the rebound (how fast the shock extends) and compression (how fast it compresses) damping. There are 12 distinct positions for each adjustment, providing a wide range of tuning options.

What is the benefit of the inverted strut design?

The inverted strut design places the larger diameter piston and seal at the bottom of the strut. This setup is stronger and better able to handle the significant side loads and braking forces experienced during performance driving and track use.

Do I need to buy separate top mounts for installation?

No, this kit includes camber-adjustable top mounts for the front and solid top mounts for the rear. These are designed to fit directly onto your BMW Z4 and allow for alignment adjustments.

AST 02-08 BMW Z4 Coupe/Convertible - E85/E86 5200 Series Coilovers

Specifications

Brand: AST
Part #: RIV-B1101SD
UPC: astRIV-B1101SD

AST 02-08 BMW Z4 Coupe/Convertible - E85/E86 5200 Series Coilovers

Name: AST 02-08 BMW Z4 Coupe/Convertible - E85/E86 5200 Series Coilovers
Brand: AST
Price: 8127.36 USD
Availability: InStock

$8127.36

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AST 5200 Series Coilovers for 03-06 BMW Z4. Adjust rebound and compression separately with external reservoirs for fine-tuned handling.

Key Features

2-way adjustable damping — control rebound and compression separately for fine-tuned handling.
External reservoirs — provide increased oil capacity and easier access for damping adjustments.
MONOTUBE design — offers consistent damping performance and better heat dissipation.
Inverted strut design — handles heavy side loads and braking forces.
Adjustable spring rates — allows customization of spring stiffness.
Camber-adjustable front top mounts and solid rear top mounts — enable precise alignment tuning for improved grip.

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Product Details

You get a set of AST 5200 Series 2-way adjustable coilovers in this AST coilover kit. These are built for serious performance driving, letting you dial in your BMW Z4's suspension for track use. The external reservoirs allow separate adjustments for rebound and compression, giving you precise control over how the car handles bumps and corners.

The MONOTUBE design means these dampers can handle the heat and stress of hard driving. The inverted strut design helps them stand up to heavy side loads and braking forces. You can also adjust the spring rates to match your setup. This kit includes camber-adjustable front top mounts and solid rear top mounts, which let you fine-tune your front-end alignment for better grip.