How many adjustment positions are there for rebound?

These AST coilovers offer 12 distinct positions for rebound adjustment. This allows you to fine-tune the return rate of your dampers for specific track conditions.

What is the benefit of the inverted strut design?

The inverted strut design is used to handle heavy side loads and braking forces. This makes the suspension more robust and reliable during hard driving on a race track.

Do these coilovers come with top mounts?

Yes, this kit includes camber-adjustable front top mounts where applicable, and solid rear top mounts where applicable. These help optimize alignment and provide a solid connection.

AST 5300 Series Coilovers BMW 1 series - E8X

Specifications

Brand: AST
Part #: RAC-B1601SD
UPC: astRAC-B1601SD

AST 5300 Series Coilovers BMW 1 series - E8X

Name: AST 5300 Series Coilovers BMW 1 series - E8X
Brand: AST
Price: 8714.88 USD
Availability: InStock

$8714.88

On Backorder

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

AST 5300 Series Coilovers for BMW 1 Series - E8X. Offers 3-way adjustability for track-focused tuning.

Key Features

3-way adjustable damping — independently tune rebound, low-speed compression, and high-speed compression for precise control.
External reservoirs — increase oil capacity and improve heat management for consistent performance.
MONOTUBE coilover design — offers robust construction and consistent damping characteristics.
Inverted strut design — built to handle significant side loads and braking forces.
Adjustable ride height — allows you to set your vehicle's stance.
Camber-adjustable front top mounts — where applicable, provides adjustment for improved front-end grip.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

3-way adjustable MONOTUBE coilovers with external reservoirs. These AST 5300 Series coilovers let you fine-tune rebound, and both low- and high-speed compression separately. They fit BMW 1 Series (E8X) and 3 Series (E9X) models from 2006-2013. This kit is built for serious track use, allowing you to dial in your suspension for maximum performance.

The inverted strut design handles heavy side loads and braking forces common on the track. You get 12 distinct positions for rebound adjustment, controlling how the damper returns after compression. You can also adjust low-speed compression for gradual suspension movements and high-speed compression for rapid impacts. This allows you to reduce body roll, improve responsiveness, and keep tires planted for better traction.