What is the benefit of a monotube damper design?

Monotube dampers use a larger piston to control rebound damping. This design prevents aeration and foaming, resulting in more responsive valving and consistent performance.

How do I adjust the suspension settings?

You can adjust the rebound damping using the knob on the damper, which has 12 distinct positions. Ride height is also adjustable to suit your needs.

Are these coilovers rebuildable?

Yes, these AST dampers are rebuildable. If any issues arise, they can be serviced at a certified AST service center.

Specifications

Brand: AST
Part #: ACC-B1503S
UPC: ACC-B1503S

AST 2019+ BMW 325 E30 RWD 5100 Comp Coilovers w/ Springs & Top Mounts

Name: AST 2019+ BMW 325 E30 RWD 5100 Comp Coilovers w/ Springs & Top Mounts
Brand: AST
SKU: ast-ast-2019-bmw-325-e30-rwd-5100-comp-coilovers-w-springs-top-mounts-t14-679709
Price: 6582.40 USD
Availability: BackOrder

$6582.40

On Backorder

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

Fits 1987-1991 BMW 325is. AST 5100 Clubracing coilovers offer 1-way adjustable rebound and ride height for track or street balance.

Key Features

Direct fit — verified for 1987-1991 BMW 325is and other listed BMW models.
Monotube dampers — larger piston for better rebound control and responsiveness.
1-way adjustable rebound — 12 positions to fine-tune damping for your driving needs.
Adjustable ride height — set your vehicle's stance and corner balance.
Includes camber-adjustable front top mounts — allows for more front-end geometry tuning.
Includes solid rear top mounts.

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About this part

Product Details

You get front and rear dampers, springs, and top mounts in this AST 5100 Clubracing Coilover package. These are built for drivers who want track performance with a balanced feel for daily driving. The monotube design helps manage rebound and ride height, giving you more control over how your car handles.

AST uses a monotube damper design. This means a larger piston inside controls the rebound damping. Because there's no air mixed in, the valving responds faster. These dampers can be rebuilt at a certified AST service center if needed.