What does 'Non Coil Over' mean for the rear shocks?

For the rear, the shocks and springs are separate components, similar to how they came from the factory. This is different from the front, where the shock and spring are integrated into a single coilover unit.

How do I adjust the rebound damping?

The rebound damping can be adjusted using a knob on the shock body. There are 12 distinct positions, allowing you to fine-tune how quickly the shock extends after being compressed.

Can I use my original top mounts with this kit?

Yes, this AST suspension kit is designed to work with your vehicle's original top mounts, which helps simplify the installation process.

Specifications

Brand: AST
Part #: ACU-B1502S
UPC: astACU-B1502S

AST 5100 Series Shock Absorbers Non Coil Over BMW 3 series - E30 M3

Name: AST 5100 Series Shock Absorbers Non Coil Over BMW 3 series - E30 M3
Brand: AST
SKU: ast-ast-5100-series-shock-absorbers-non-coil-over-bmw-3-series-e30-m3-t14-341757
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 1988-1991 BMW M3. AST 5100 Series Street Non Coil Over Shocks offer adjustable rebound and ride height for improved road balance.

Key Features

Direct fit — verified for 1988-1991 BMW M3
Monotube dampers — feature a large piston for precise rebound control and responsive valving.
Adjustable rebound damping — control the return stroke of the shock with 12 distinct positions.
Adjustable ride height — fine-tune your vehicle's stance and center of gravity.
Front coilover design, rear divorced setup — maintains OEM-like configuration for a comfortable ride.
Includes springs — vehicle-specific, fixed spring rates for the rear are included.

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About this part

Product Details

This kit uses monotube dampers, which have a large piston inside. This design helps control the rebound damping more precisely and prevents air from getting into the fluid, so the shocks respond better. The front shocks are a coilover design, while the rear shocks keep the factory divorced setup. This setup is designed to work with your car's original top mounts and offers a comfortable ride with a solid road balance.