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Seasonal Pick Qa1 Pro Rear Weld-in Coil-over System - Mod Series - 12in X 150lbs/in - 3in Tube - Aluminum In Multiple Colors [8udQDlWa]

$114.99 $367.99 -69%

QA1 Pro Rear Weld-In Coil-Over SystemLooking to elevate your vehicle's performance with a top-tier rear suspension system? Look no further than the QA1 Pro Rear Weld-In Coil-Over System from the MOD Series. This advanced system is designed to maximiz

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QA1 Pro Rear Weld-In Coil-Over System

Looking to elevate your vehicle's performance with a top-tier rear suspension system? Look no further than the QA1 Pro Rear Weld-In Coil-Over System from the MOD Series. This advanced system is designed to maximize your vehicle's performance, offering a wide range of options to suit various driving needs. With its 12-inch x 150lbs/in coil-over design and 3-inch lightweight aluminum tube, this system is built to deliver exceptional strength and durability. The QA1 Pro Rear Weld-In Coil-Over System is the perfect choice for those seeking a superior driving experience.
  • Double Adjustable, Single Adjustable, and Ride Sensitive Valving Options
  • Evenly Spaced Valving Changes for Seamless Adjustments
  • 100% Dyno Tested and Serialized for Quality Assurance

Key Features and Specifications

The QA1 Pro Rear Weld-In Coil-Over System is engineered with precision and includes a variety of features that set it apart from the competition. Each adjustment is carefully defined to provide the ideal horse curve, ensuring optimal performance. The system offers Simultaneous Compression and Rebound Single Adjustable (DS), Independent Compression & Rebound Double Adjustable (DD), or Ride Sensitive Non-Adjustable (ALN) options, allowing you to tailor the ride to your preferences. With a 5/8" centerless ground, hard chrome plated piston rod and a three-step sealing system, this system is built to last and withstand the toughest conditions. The aluminum piston with PTFE piston band ensures smooth operation and reliability.
  • Available in Multiple Adjustment Options
  • High-Quality Materials for Durability and Performance
  • Revalveable and Rebuildable for Long-Term Use

Practical Applications and Benefits

The QA1 Pro Rear Weld-In Coil-Over System is a versatile choice for a variety of applications, including drag racing, street performance, and street rod vehicles. Its coil-over design and adjustable valving make it an excellent choice for those seeking improved handling, increased stability, and enhanced ride quality. Whether you're looking to improve your vehicle's performance on the track or for daily driving, this system is sure to deliver. With its comprehensive kit, which includes Proma Star Shocks or Aluma Matic Shocks, linear or variable rate springs, and all necessary mounting hardware, installing this system is a breeze.
  • Perfect for Drag Racing, Street Performance, and Street Rods
  • Improves Handling, Stability, and Ride Quality
  • Includes All Necessary Hardware for Easy Installation

What Our Customers Say

December 27, 2025

Absolutely no complaints!

This is a very refined and capable tool.

- RefinedTool.

December 27, 2025

Absolutely no complaints!

It’s a very well-balanced and harmonious design.

- Harmonious_Tech.

December 27, 2025

Absolutely no complaints!

It has a great look that complements my space.

- SpaceSaver.

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