What is the benefit of the external reservoirs?

External reservoirs help to keep the damper fluid cooler during high-demand situations like track driving. They also provide easier access to make adjustments to the compression settings.

What is the difference between low-speed and high-speed compression adjustment?

Low-speed compression affects how the suspension reacts to gradual movements, like body roll during cornering. High-speed compression controls how the suspension handles rapid impacts, such as hitting a bump or pothole.

What is included with this coilover kit?

This kit includes the MONOTUBE coilovers with springs, external reservoirs, droplinks, camber-adjustable front top mounts, and solid rear top mounts.

Specifications

Brand: AST
Part #: RAC-B2302S/5D
UPC: RAC-B2302S/5D

AST 15-21 BMW 230i xDrive F22 AWD 5300 Series Coilovers w/ Springs & Droplink

Name: AST 15-21 BMW 230i xDrive F22 AWD 5300 Series Coilovers w/ Springs & Droplink
Brand: AST
SKU: ast-ast-15-21-bmw-230i-xdrive-f22-awd-5300-series-coilovers-w-springs-droplink-t14-679814
Price: 8627.84 USD
Availability: BackOrder

$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.

AST 15-21 BMW 230i xDrive F22 AWD 5300 Series Coilovers w/ Springs & Droplink. Fine-tune rebound and high/low-speed compression for track performance.

Key Features

MONOTUBE coilover design handles heavy side loads and braking forces.
3-way adjustability: rebound, low-speed compression, and high-speed compression.
External reservoirs help manage heat and provide access to separate adjustments.
12 distinct rebound adjustment positions for fine-tuning.
Adjustable spring rates allow for further customization.
Includes camber-adjustable front top mounts and solid rear top mounts.

This AST coilover kit is designed for the 2015-2021 BMW 230i xDrive F22 AWD model.

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About this part

Product Details

The AST 5300 Series coilovers are built around a MONOTUBE design, a choice that matters for handling the intense forces found on a race track. This setup allows for independent adjustment of rebound, low-speed compression, and high-speed compression, giving you granular control over your vehicle's suspension behavior. With 12 distinct positions for rebound adjustment alone, each change you make offers a noticeable difference, letting you dial in the exact feel you need for any driving condition.

This kit features external reservoirs, which help manage heat buildup during demanding use and provide access to those separate compression adjustments. The inverted strut design is particularly beneficial for managing heavy side loads and braking forces, common in performance driving. You also get the flexibility to adjust spring rates, further customizing the suspension to your preferences. The kit includes camber-adjustable front top mounts and solid rear top mounts, allowing for more precise alignment adjustments to optimize front-end grip and handling characteristics.

This is a comprehensive suspension package designed for serious track use. It's intended to give you the tools to fine-tune your BMW 230i xDrive's handling for maximum performance and feedback, transforming how the car responds to steering, braking, and acceleration.