

Specifications
- Brand
- QA1
- Part #
- M421CL
- UPC
- 806990153951

QA1 MOD Series Coil-Over Shock Absorber - Remote - Left Hand - Bearing Mount - 10.625in/15in
$977.89
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QA1 MOD Series coil-over shock absorber M421CL. Features QuickTune Technology for rapid revalving without oil interruption.
Key Features
- Fits custom mount applications with bearing mounts.
- Features QuickTune Technology for rapid revalving without interrupting the oil path or opening the shock.
- Offers 4-way adjustability for high and low-speed compression and rebound.
- Has a compressed length of 10.63 inches and an extended length of 15 inches, with 4.38 inches of travel.
- Includes medium compression and rebound valve packs as standard.
- Each shock is 100% dyno tested and serialized for quality assurance.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
If you're building a high-performance drag car or a pro-touring machine that needs to adapt to changing track conditions, the QA1 MOD Series coil-over shock absorber is designed for you. This isn't just about a single setting; it's about having the flexibility to fine-tune your suspension on the fly. The core of this system is QA1's QuickTune Technology, which uses dry modular valve packs that can be swapped out in minutes, even while the shock is still mounted on the vehicle.
What makes this truly unique is that you can revalve the shock without breaking the oil seal or exposing the internal components to air or contaminants. This means you get consistent, reliable adjustments every time. This particular model is a left-hand remote canister shock with bearing mounts, offering a compressed length of 10.63 inches and an extended length of 15 inches, with 4.38 inches of travel. It comes standard with medium compression and rebound valve packs, and it's 4-way adjustable for both high and low-speed bleed, allowing for precise control over your suspension's behavior.
Each QA1 MOD Series shock is 100% dyno tested and serialized, ensuring it meets strict performance standards right out of the box. They are also made in the USA. While this shock is designed for easy revalving, remember that for optimal performance and safety, always refer to the manufacturer's installation instructions and consider consulting with a suspension specialist for tuning advice specific to your vehicle and driving style.
Specifications
- Brand
- QA1
- Manufacturer Part #
- M421CL
- UPC
- 806990153951
Frequently Asked Questions
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QA1 MOD Series Coil-Over Shock Absorber - Remote - Left Hand - Bearing Mount - 10.625in/15in
