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QA1 Kit Pro Rear C-O S-Adj 12-130 - DS501-12130

QA1 Pro-Rear System DS501-12130

Upgrade your vehicle's rear end with the QA1 Pro-Rear System DS501-12130, designed for those who demand exceptional performance on the track and the street. Whether you're into drag racing, street performance, or building a classic street rod, this system is tailored to meet your needs.

Key Features

  • Adjustable Options: Choose from double adjustable, single adjustable, or ride-sensitive non-adjustable configurations to suit your driving style.
  • Smooth Adjustments: Experience evenly spaced valving changes throughout the adjustment range, ensuring seamless transitions without any jumps between clicks.
  • Coil-Over Design: The kit includes lightweight aluminum coil-over shocks, making it easy to adjust ride height according to your preferences.
  • Precision Engineering: Each shock features a precision machined aluminum piston with a PTFE piston band for enhanced durability and performance.
  • Robust Construction: Solid piston rod with hard chrome plating and a three-step sealing system ensures longevity and reliability.
  • Compatibility: Designed to fit 3" or 3.25" diameter axle tubes, making it versatile for various applications.
  • Complete Kit: The package includes two Proma Star or Aluma Matic shocks, two linear or variable rate springs with a rate of 130, and all necessary mounting hardware.

Specifications

Feature Details
Shock Type Single Adjustable / Double Adjustable / Non-Adjustable
Material Lightweight Aluminum
Adjustment Type Simultaneous Compression and Rebound / Independent Compression & Rebound
Testing 100% Dyno Tested and Serialized
Rebuildable Yes, by QA1 Factory or Authorized Service Centers
Made in USA

Why Choose the DS501-12130?

The QA1 Pro-Rear System DS501-12130 stands out with its combination of adjustability, precision, and robust construction. Whether you're hitting the drag strip or cruising down the highway, this system is engineered to provide a smooth and responsive ride, allowing you to tackle any driving challenge with confidence.

Customer Insights

Users have praised the DS501-12130 for its easy installation and noticeable improvement in handling. Many have noted how the adjustable features allowed them to fine-tune their setup for both daily driving and competitive racing, making it a favorite among performance enthusiasts.

Other Part Numbers:
QA1 #qapDS501-12130

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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Things
Sale price None
Wholesale price $758.98
Shipping Weight: 29.70
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 $643.20 $840.79 ? $758.95 ? 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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