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Suspension and Components› Shocks, Struts, Coil-Overs and Components

QA1 Precision Products

QA1 Pro-R Double Adjustable Coilover Kit Silver Spring

$974.84 $857.95 Save $116.89

SKU: DD42-650

Out of Stock
Out of Stock
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The QA1 Adjustable Coilover Kit provides a convenient solution for upgrading your vehicle's suspension. This kit combines QA1's popular shocks and springs into a streamlined package, simplifying the ordering process. It includes spanner wrenches and thrust bearings for easy ride height adjustments.

You can select from single or double adjustable valving options to tune your ride quality. The single adjustable shocks offer 18 clicks to firm or soften the ride, suitable for street cars, cruisers, or casual track day use. Double adjustable shocks provide independent adjustment of compression and rebound damping with 18 clicks each, offering more precise tuning for enhanced traction and handling, ideal for performance applications.

This specific kit features a 650 lb/in spring rate, recommended for independent suspensions with an axle weight of 1900-2200 lbs. The springs have a 9-inch length and allow for a recommended ride height range of 12 to 12-1/2 inches. It's important to note that this shock package is generally not recommended for most solid axle applications due to its overall travel. The kit includes eyelets with 1.25-inch width and mounting sleeves for 1/2-inch and 5/8-inch hardware.
Show original supplier description
The QA1 Adjustable Coilover Kit provides a convenient solution for upgrading your vehicle's suspension. This kit combines QA1's popular shocks and springs into a streamlined package, simplifying the ordering process. It includes spanner wrenches and thrust bearings for easy ride height adjustments. You can select from single or double adjustable valving options to tune your ride quality. The single adjustable shocks offer 18 clicks to firm or soften the ride, suitable for street cars, cruisers, or casual track day use. Double adjustable shocks provide independent adjustment of compression and rebound damping with 18 clicks each, offering more precise tuning for enhanced traction and handling, ideal for performance applications. This specific kit features a 650 lb/in spring rate, recommended for independent suspensions with an axle weight of 1900-2200 lbs. The springs have a 9-inch length and allow for a recommended ride height range of 12 to 12-1/2 inches. It's important to note that this shock package is generally not recommended for most solid axle applications due to its overall travel. The kit includes eyelets with 1.25-inch width and mounting sleeves for 1/2-inch and 5/8-inch hardware.

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

BrandQA1 Precision Products
Part NumberDD42-650
CategorySuspension and Components
5,000+ Trusted brands
1M+ Enthusiasts
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(760) 282-4645 hello@motormia.co

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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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