How do I adjust the compression and rebound settings?

The AST 5200 Series coilovers feature external reservoirs with adjustment knobs. You can independently adjust the compression and rebound damping to fine-tune your suspension's response to track or road conditions.

What is the benefit of the inverted strut design?

An inverted strut design places the larger piston and damper body at the bottom, closer to the wheel. This setup is stronger and better able to handle the significant side loads and braking forces experienced during performance driving.

Do I need to buy anything else to install these coilovers?

This kit includes the coilovers, springs, and top mounts. You should always refer to the manufacturer's installation instructions for any specific hardware or tools required for proper installation on your 2006-2008 BMW Z4.

AST 06-08 BMW Z4 M Coupe/Convertible - E85/E86 5200 Series Coilovers

Specifications

Brand: AST
Part #: RIV-B1010SD
UPC: astRIV-B1010SD

AST 06-08 BMW Z4 M Coupe/Convertible - E85/E86 5200 Series Coilovers

Name: AST 06-08 BMW Z4 M Coupe/Convertible - E85/E86 5200 Series Coilovers
Brand: AST
Price: 8127.36 USD
Availability: InStock

$8127.36

On Backorder

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

AST 06-08 BMW Z4 M Coupe/Convertible - E85/E86 5200 Series Coilovers. Adjust compression and rebound separately for track-tuned handling.

Key Features

Direct fit — verified for 2006-2008 BMW Z4 M Coupe/Convertible.
2-way adjustable damping — independently adjust rebound and compression for precise tuning.
External reservoirs — provide more fluid capacity for consistent damping under heavy use.
Monotube design — offers better damping control and heat dissipation.
Inverted strut design — handles higher side loads and braking forces.
Camber-adjustable front top mounts and solid rear top mounts included — enables alignment adjustments.

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Fits this vehicle

BMW Z4 2006-2008

Product Details

This kit features a monotube coilover design with external reservoirs. You can adjust both the rebound (how fast the shock returns) and compression (how fast it compresses) independently. This lets you fine-tune the car's balance, reduce body roll in corners, and keep your tires glued to the track. The inverted strut design is strong enough to handle the heavy side loads and braking forces you'll encounter during spirited driving.