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QA1 Suspension System, Front, 2-4" Drop
$5445.95

Upgrade Your Classic Ride with QA1's Coil-Over System

Transform your classic Dodge Charger, Dodge Challenger, or Plymouth Barracuda with the QA1 52347-D400 coil-over suspension system. This innovative kit replaces the old torsion bar suspension, providing a modern driving experience that enhances both performance and comfort.

Key Features

  • Lightweight Tubular K Member: Reduces overall weight and creates space for big-tube headers.
  • Modular Motor Mounts: Compatible with various engine options, including Gen 3 Hemis.
  • Easy Installation: Designed for a straightforward bolt-in process with no cutting or welding required.
  • Improved Drivability: QA1 tubular control arms and rack-and-pinion steering enhance handling and provide a modern feel.
  • Customizable Ride Quality: Choose between single- or double-adjustable QA1 coil-overs to fine-tune your ride height and comfort.
  • Performance Options: Optional MOD Series shocks for optimal track and drag strip performance.

Configurations to Suit Your Needs

The 52347-D400 kit is available in two configurations: drag and handling. Each is tailored to meet specific driving styles and performance needs.

Drag Kits

  • Utilize rod ends on both upper and lower control arms to enhance weight transfer and reduce deflection.
  • Feature a lighter spring rate for better rear grip during hard launches.
  • Provide a drop range of 0"-2".

Handling Kits

  • Incorporate poly bushings on lower control arms for improved cornering and reduced noise, vibration, and harshness (NVH).
  • Use a heavier spring rate for enhanced front-end stability.
  • Available with drop options of 0"-2" or 2"-4".

Compatibility and Fitment

All kits are designed to work with Mustang II spindles, providing a wide range of brake options. Note that kits with a 2"-4" drop require wheels to be at least 18" in diameter. The coil-overs and control arms in this kit cannot be used with other QA1 tubular products designed for torsion bar suspension.

Shock Recommendations

  • Single-adjustable shocks are ideal for street use.
  • Double-adjustable coil-overs are best for consistent drag racing, autocross, or road racing.
  • MOD Series shocks offer maximum tunability and higher force curves.

Made in the USA

QA1 is proud to manufacture their products in the USA, ensuring quality and performance you can trust. Plus, both single- and double-adjustable shocks come with a Limited Lifetime Warranty, giving you peace of mind with your purchase.

What Customers Are Saying

Many users have praised the QA1 52347-D400 system for its impressive handling and improved ride quality. One customer noted, "The installation was a breeze, and the difference in performance is night and day. My Charger feels more responsive than ever!" Another remarked, "I love how customizable the coil-overs are; I can easily adjust them for street cruising or track days." These testimonials highlight the system's effectiveness in enhancing the driving experience.

Other Part Numbers:
QA1 #qap52347-D400

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 $5,695.36
Shipping Weight: 167.20
Length: 99
Width: 77
Height: 58
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 -
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Vendor Inv Cost Retail Jobber MAP Core Updated
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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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