How do I adjust the ride height and rebound on these coilovers?

Ride height is adjusted by threading the lower spring perch up or down on the shock body. Rebound damping is adjusted using the knob at the top of the damper, with 12 distinct positions available to fine-tune your vehicle's handling characteristics.

Can I use my stock top mounts with these coilovers?

Yes, these AST coilovers are designed to run with OEM top mounts. This helps maintain a comfortable ride and simplifies installation.

Are these coilovers suitable for track use or only street driving?

The 5100 Street NCO Suspension is designed for everyday use and offers adjustable rebound and ride height for optimal road balance. While they can be tuned for spirited driving, they are primarily intended for street performance.

Specifications

Brand: AST
Part #: ACU-B1603SD
UPC: ACU-B1603SD

AST 11-12 BMW 1 Series M E82 RWD 5100 Street Coilovers w/ Springs & Droplink

Name: AST 11-12 BMW 1 Series M E82 RWD 5100 Street Coilovers w/ Springs & Droplink
Brand: AST
SKU: ast-ast-11-12-bmw-1-series-m-e82-rwd-5100-street-coilovers-w-springs-droplink-t14-679686
Price: 4798.08 USD
Availability: BackOrder

$4798.08

On Backorder

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

Fits 2008-2013 BMW M3. AST 5100 Street Coilovers with springs and droplinks. Offers adjustable ride height and rebound damping for improved road balance.

Key Features

Direct fit — verified for 2008-2013 BMW M3 and 2011 BMW 1 Series M
Monotube dampers — offer a large piston for precise rebound damping control
Adjustable rebound — control the return extension of your dampers for tailored road balance
Adjustable ride height — fine-tune your vehicle's stance
Front coilovers and rear divorced setup — maintains OEM-like comfort with improved performance
Includes springs — designed to work with OEM top mounts

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About this part

Product Details

12 distinct rebound adjustment positions allow fine-tuning for ideal road balance. The AST 5100 Street NCO Suspension system is built for everyday use, maximizing grip by controlling rebound and ride height. This kit includes front coilovers and rear dampers in a divorced setup, similar to OEM, for a more comfortable ride. It features vehicle-specific, fixed spring rates for the rear, with initial setup based on extensive development testing.

AST monotube dampers use a large piston for precise rebound damping control. This design prevents aeration and foaming, resulting in more responsive valving and increased performance in various driving conditions. The dampers are rebuildable at certified AST service centers.