How do I adjust the rebound and compression settings?

The AST 5300 Series coilovers feature external reservoirs that house the adjustment knobs. You can independently adjust rebound, high-speed compression, and low-speed compression across 12 distinct positions for each.

What is the benefit of the inverted strut design?

The inverted strut design places the larger piston rod at the bottom. This configuration is stronger and better able to handle the significant side loads and braking forces that occur during aggressive driving and track use.

Do these coilovers come with top mounts?

Yes, this kit includes camber-adjustable front top mounts and solid rear top mounts where applicable for the vehicle. These allow for more precise alignment adjustments to optimize handling.

AST 5300 Series Coilovers BMW 3 series - E46 M3 Coupe

Specifications

Brand: AST
Part #: RAC-B1103SD
UPC: astRAC-B1103SD

AST 5300 Series Coilovers BMW 3 series - E46 M3 Coupe

Name: AST 5300 Series Coilovers BMW 3 series - E46 M3 Coupe
Brand: AST
Price: 8627.84 USD
Availability: InStock

$8627.84

On Backorder

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

Fits 2001-2006 BMW M3. AST 5300 Series 3-way adjustable coilovers with external reservoirs for fine-tuning track performance.

Key Features

Direct fit — verified for 2001-2006 BMW M3
3-way adjustable — tune rebound, high-speed compression, and low-speed compression independently
External reservoirs — allow for increased fluid capacity and easier adjustment
Monotube design — handles heavy side loads and braking forces
Adjustable ride height — customize your vehicle's stance
Camber-adjustable front top mounts — included where applicable for alignment tuning

Secure CheckoutFast Shipping631-982-0042

Fits this vehicle

BMW M3 2001-2006

Product Details

Already running a dedicated track setup? This AST 5300 Series coilover kit is the next piece to fine-tune your 2001-2006 BMW M3. These are 3-way adjustable motorsport coilovers built for serious track use, letting you dial in rebound and both high- and low-speed compression separately. The inverted strut design handles heavy side loads and braking forces common on the track.

Each corner features a monotube coilover with an external reservoir. This setup gives you the flexibility to adjust spring rates and fine-tune three critical aspects of your suspension. You get 12 distinct positions for rebound adjustment, controlling how the damper returns after compression. You can also independently adjust low-speed compression for gradual inputs and high-speed compression for rapid impacts. Balancing these settings helps reduce body roll, improve responsiveness, and keep your tires planted for better traction.