What is the benefit of the external reservoirs on these coilovers?

The external reservoirs increase the oil capacity for the dampers. This helps with cooling and allows for easier access when adjusting the compression and rebound settings.

Can I adjust the ride height with these coilovers?

Yes, these coilovers allow for adjustable ride height. This lets you fine-tune your vehicle's stance and affects how the suspension behaves during cornering.

Do I need any special tools to install these coilovers?

Installation typically requires standard automotive tools for suspension work. Refer to the manufacturer's installation instructions for a detailed list of required tools and procedures.

AST 5200 Series Coilovers BMW 3 series - E30

Specifications

Brand: AST
Part #: RIV-B1501S
UPC: astRIV-B1501S

AST 5200 Series Coilovers BMW 3 series - E30

Name: AST 5200 Series Coilovers BMW 3 series - E30
Brand: AST
Price: 9160.96 USD
Availability: InStock

$9160.96

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 5200 Series 2-way adjustable coilovers with external reservoirs for track performance.

Key Features

Direct fit — verified for 1987-1991 BMW 325is, 1991 BMW 318is, 1986-1988 BMW 325, 1984-1987 BMW 325e, 1984-1985 BMW 318i, 1991-1992 BMW 318i
2-way adjustable damping — adjust compression and rebound separately for fine-tuned handling.
External reservoirs — allow for more oil capacity and easier adjustment access.
MONOTUBE design — offers consistent damping performance under demanding conditions.
Inverted strut design — built to handle high side loads and braking forces common in track driving.
Adjustable ride height — customize your vehicle's stance and cornering balance.

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Will this fit your vehicle?

Product Details

Already have a performance-focused BMW E30? This AST 5200 Series coilover kit is the next piece for serious track tuning. These are 2-way adjustable coilovers with external reservoirs, letting you fine-tune compression and rebound damping separately. They are built for track use, handling heavy side loads and braking forces with their inverted strut design.

The MONOTUBE design in both front and rear dampers allows for separate adjustment of rebound (how fast the damper returns) and compression (how fast it compresses). You get 12 distinct positions for each adjustment, giving you the flexibility to dial in your suspension for specific track conditions or driving style. This helps reduce body roll, improve responsiveness, and keep your tires planted for better traction. The kit also includes camber-adjustable front top mounts and solid rear top mounts to further refine your front-end grip.