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QA1 Kit, Pro-Rear C-O D-Adj. 3.25" Proma Star 12-110 - DD501-1101

QA1 Pro-Rear System DD501-1101

Elevate your ride quality and performance with the QA1 Pro-Rear System DD501-1101. This system is designed for enthusiasts who demand precision and adaptability, whether you're hitting the drag strip, cruising the streets, or building a street rod.

Key Features

  • Adjustable Options: Choose from double adjustable, single adjustable, or ride sensitive non-adjustable configurations to suit your driving style.
  • Smooth Adjustments: Experience seamless adjustments with evenly spaced valving changes, ensuring no jumps between clicks.
  • Lightweight Construction: Crafted from high-quality aluminum, these coil-over shocks are built to reduce weight without sacrificing strength.
  • Ride Height Adjustability: Tailor your vehicle’s stance with adjustable ride height, allowing for a customized look and performance.
  • Complete Kit: The kit includes two Proma Star or Aluma Matic Shocks, two linear or variable rate springs, and all necessary mounting hardware.
  • Rebuildable and Revalveable: Designed for longevity, these shocks can be revalved and rebuilt by QA1 or authorized service centers, ensuring they remain in peak condition.
  • 100% Dyno Tested: Each shock is rigorously tested and serialized, guaranteeing performance and reliability.

Specifications

  • Model: DD501-1101
  • Spring Rate: 110
  • Shock Type: Double Adjustable
  • Material: Lightweight Aluminum
  • Made in: USA

Fitment

The QA1 Pro-Rear System DD501-1101 is compatible with a variety of drag racing, street performance, and street rod applications, making it a versatile choice for any automotive enthusiast.

Customer Insights

Users have praised the QA1 Pro-Rear System for its precise adjustments and noticeable improvement in handling. Many report that the lightweight design contributes to better overall performance, especially in competitive settings. The ability to fine-tune settings has been highlighted as a significant advantage, allowing drivers to adapt to different tracks and conditions effortlessly.

Other Part Numbers:
QA1 #qapDD501-1101

Proposition 65

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

QA1 Banner

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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Things
Sale price None
Wholesale price $962.99
Shipping Weight: 29.80
Length: 40
Width: 8
Height: 8
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 $816.09 $1,066.79 ? $962.95 ? 2025-07-11 10:45:06

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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