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Vivid Racing Gear 
QA1 HD Pro Rear Drag 4-Link System for Enhanced Drag Racing Performance
Upgrade your drag racing setup with the QA1 Heavy Duty Pro Rear Drag 4-Link System. This comprehensive kit is tailored for dedicated DIY racers looking to boost their vehicle's performance. Whether you're hitting the strip or fine-tuning your ride, this system provides the perfect blend of quality and convenience.
Key Features
- Professional-Grade Components: Built with high-quality, MIG-weldable materials, ensuring a robust and safe design.
- Customizable Fit: The components can be cut to length, making it compatible with any setup featuring 40-inch or narrower frame rails.
- Adjustable Performance: Enjoy on-car adjustability and a wide range of instant center tuning to optimize your drag racing experience.
- Heavy-Duty Construction: Features inch-thick plates, 1-1/4 inch trailing arm tubes, Grade 8 hardware, and QA1 chromoly rod ends to withstand high-performance demands.
- Complete Kit: Includes everything you need: trailing arms, brackets, rod ends, tube adapters, a diagonal link kit, and QA1 MOD Series 4-way Adjustable Coilover Shocks.
Specifications
- Welding required for installation
- Compatible with 3-inch axle tubes
- Designed for 40-inch and narrower frame rails
Customer Insights
Users appreciate how the QA1 HD Pro Rear Drag 4-Link System simplifies the installation process while delivering track-ready performance. Many have noted its adaptability and the ability to fine-tune their suspension settings, providing a competitive edge when racing.
What’s Included in the Kit
- 22 Trailing arms, brackets, rod ends, tube adapters
- 40 Shock crossmember and mounting tabs
- 40 Diagonal link kit with mounting brackets
- Grade 8 hardware
- QA1 MOD Series 4-way Adjustable Coilover Shocks
With the QA1 HD Pro Rear Drag 4-Link System, you can confidently tackle any drag racing challenge. Experience the performance boost and reliability that comes from a well-engineered suspension system.
Other Part Numbers:
QA1 #qapR370-150
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
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 ExpertsThe 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 FacilityThe 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 RacingIf 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.
| Sale price | None |
| Wholesale price | $2,534.51 |
| Shipping |
Weight: 48.50 Length: 62 Width: 14 Height: 7 |
| Product Added At | Monday 23 December, 2024 |
| Product Modified At | Friday 11 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | Turn_API |
| View In Admin |
| Carb Approved | - |
|---|---|
| Carb Number | - |
| Epa Status | N/A |
| Prop65 | Yes |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Turn 14 | $2,147.89 | $2,787.26 | ? | $2,515.95 | ? | 2025-07-11 10:45:17 |
