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QA1 Kit, Pro-Coil Aluminum MOD-Adj, 10-400 Tapered Flat
$1910.95

QA1 MOD Series Shock: MG401-10400B

Upgrade your ride with the QA1 MOD Series Shock, designed specifically for high-performance drag racing and handling/pro-touring vehicles. This innovative shock absorber redefines adjustability, allowing you to make precise changes in just minutes without any hassle.

Key Features

  • QuickTune Technology: Easily swap out dry modular valve packs while the shock remains installed on your vehicle. This industry-first feature ensures you can adapt to changing track conditions without compromising the oil path.
  • Double Adjustable Design: Enjoy independent control over compression and rebound settings, thanks to the unique low-speed bleed feature. This allows for a customized driving experience tailored to your preferences.
  • Mounting Flexibility: The shock is designed with adjustable mounting options, accommodating various vehicles and configurations. The indexable base eyelet lets you position the shock and canister at the optimal angle for your setup.
  • Nitrogen-Charged Canister: Available in both piggyback and remote configurations, ensuring a straightforward installation even in tight spaces.
  • Durable Construction: All QA1 shocks, including the MOD Series, are 100% dyno tested and serialized, guaranteeing top-notch quality. Proudly manufactured in Lakeville, Minnesota.

Specifications

  • Model: MG401-10400B
  • Compressed Height: 8.63 inches
  • Extended Height: 12.63 inches
  • Spring Rating: 400 with a 10-inch tapered flat spring

Fitment

This shock kit is compatible with various vehicles, thanks to its adjustable mounting features. Whether you're hitting the drag strip or taking on winding roads, the MOD Series Shock is engineered to meet your performance needs.

Customer Insights

Users have praised the MOD Series for its remarkable tunability and responsiveness. One enthusiast noted the ease of adjusting the shocks on-the-fly, allowing for quick tweaks that significantly improved their vehicle's handling. Another reviewer highlighted the quality of construction, stating that the shocks felt robust and reliable even under heavy use.

Why Choose QA1?

When it comes to performance shocks, QA1 stands out for its commitment to quality and innovation. With the MOD Series Shock, you're not just getting a product; you're investing in a superior driving experience that adapts to your needs.

Other Part Numbers:
QA1 #qapMG401-10400B

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is QA1?

QA1 is a company that was founded in 1993. They specialize in manufacturing high-quality suspension parts, shock absorbers, composite driveshafts, bearings, steering components, and other related accessories. Their products are used in different industries such as the industrial, motorsports, and automotive sectors. Today, they are the leading manufacturer of OE parts in the market.

Suspension Experts

The company is best known for its motion control sub-assemblies and wide range of suspension systems. They are always searching for new ways to develop each component to enhance their products further. 

State-of-the-Art Facility

The company is housed in one of the most sophisticated facilities in the market to accommodate the increasing demands of its customers. With 100,000 square feet at their disposal, their facility contains high-tech equipment such as a CNC machine, laser cutting equipment, hydraulic presses, and filament windings. It allows them to manufacture the best product in the market.

QA1 is also one of the few companies that are ISO certified. It guarantees that their parts are manufactured consistently, following the standards put in place by the company and the regulators.

Purchase QA1 Products At Vivid Racing

If you are in the market for quality suspension parts for your vehicle, then QA1 is the brand for you. They have been manufacturing components for the last 28 years and have consistently given their customers parts that meet their demand. To know more about QA1, visit Vivid Racing and check out their list of parts that meet your demand.



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Sale price None
Wholesale price $1,911.03
Shipping Weight: 25.80
Length: 30
Width: 15
Height: 10
Product Added At Monday 23 December, 2024
Product Modified At Friday 11 July, 2025
Imported By ETLOverride
Last Edited By Turn_API
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Emissions Info
Carb Approved -
Carb Number -
Epa Status N/A
Prop65 Yes
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
Turn 14 $1,619.52 $2,117.02 ? $1,910.95 ? 2025-07-11 10:45:09

Manufacturer Direct Shipping
This item is available for direct shipping from the manufacturer. Please verify stock availability with the manufacturer. Once confirmed, you can place an order through [Meyer Distributing], who will arrange for dropshipping from the manufacturer directly to our customer.

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