Sale

AST Suspension

5100 Series 1-Way Adjustable Monotube Coilover Kit

$3,750.00 $3,125.00 Save $625.00

SKU: ACU-V1903SD

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The AST Suspension 5100 Series coilovers are engineered to provide optimal road balance for both track use and daily driving, offering a perfect blend of performance and comfort. These 1-way adjustable dampers feature 12 distinct positions, allowing for precise tuning of rebound to achieve your desired driving experience. The monotube design ensures consistent performance and a more responsive valving due to the absence of aeration or foaming. This kit incorporates a coilover design for the front dampers and maintains a divorced setup for the rear, similar to OEM, contributing to a more comfortable ride. The design also includes an inverted strut for enhanced resistance to side and braking loads. The 5100 series coilovers are rebuildable at a certified AST service center, ensuring longevity and serviceability. Note: For the Competition series, only the front top mount is included, and some body modification may be required for installation. When mounting the rear top mounts, factory locating tabs on some vehicles may need to be adjusted to properly install the AST top mounts. A DCC Cancellation Kit may also be of interest.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAST Suspension
Part NumberACU-V1903SD
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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