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QA1 Level 1 Handling Suspension Kits HK21-CRB2

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Parts & Accessories

QA1 Level 1 Handling Suspension Kits HK21-CRB2

SKU 9cc5f0ddafb4

Car Chassis & Suspension Kits

$1,870.06

Freight and taxes calculated at checkout

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Warranty

No warranty

Commercial use may carry a shorter period than pleasure use.

Warranty terms
Freight

Freight — oversize — from $349. Ships in 1–3 business days, 3–10 business days in transit.

Freight damage must be noted on the delivery receipt and reported within 48 hours of delivery.

Shipping rates
Returns

30-day return window · 25% restocking fee plus freight both ways.

Engines or transmissions that have been disassembled or parted out cannot be returned.

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Payment

Secure card payment via Stripe. A deposit holds an item for 15 days.

Some engines and transmissions carry a refundable core charge, shown on the product page where it applies.

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Catalogue data

Specification

3 fields

Part number
9cc5f0ddafb4
Department
Parts & Accessories
Category
Car Chassis & Suspension Kits

In the seller's words

Description

QA1 Level 1 Handling Suspension Kit – Performance & Comfort Combined!

The QA1 Level 1 Handling Suspension Kit (HK21-CRB2) is a bolt-on upgrade designed to increase suspension performance without sacrificing ride comfort. This kit includes high-quality tubular control arms, single-adjustable shocks, and a front sway bar, making it the perfect entry-level handling package for street performance, autocross, and daily driving.

Designed for small block & LS-powered vehicles, this kit delivers better control, reduced body roll, and improved road feedback while maintaining a smooth, comfortable ride.

Perfect for enthusiasts looking for a high-quality suspension upgrade without going full race-spec!

What’s Included in the Kit?

✅ Single Adjustable Front & Rear Shocks – Provides customizable ride damping
✅ 1.25” Hollow Front Sway Bar (Black Finish) – Improves steering response & stability
✅ Chromoly Tubular Upper & Lower Control Arms (Black Finish) – Stronger & lighter than stock components
✅ K-Member for Additional Front-End Rigidity – Enhances chassis strength & alignment
✅ Tie Rod Sleeves – Improves steering precision & durability
✅ Polyurethane Bushings – Reduces deflection for better handling
✅ All Necessary Mounting Hardware – Ensures a secure installation

Upgrade your suspension with this Level 1 kit and experience smoother, more controlled driving!

Technical Specifications

Feature Details
Brand QA1
Manufacturer Part # HK21-CRB2
Product Type Suspension Handling Package
Front Coil Springs Included? ❌ No
Rear Coil Springs Included? ❌ No
Rear Leaf Springs Included? ❌ No
Front Shocks Included? ✅ Yes (Single Adjustable)
Rear Shocks Included? ✅ Yes (Single Adjustable)
Front Sway Bar Included? ✅ Yes (Hollow, 1.25” / 31.75mm)
Rear Sway Bar Included? ❌ No
Upper Control Arms Included? ✅ Yes (Chromoly Tubular)
Lower Control Arms Included? ✅ Yes (Chromoly Tubular)
Trailing Arm Mount Braces Included? ❌ No
Bushing Material Polyurethane
Bushing Color Black
K-Member Included? ✅ Yes
Brake Components Included? ❌ No
Mounting Hardware Included? ✅ Yes
Quantity Sold as a kit

⚡ A great balance between ride comfort and performance handling!

Fitment & Compatibility

✔ Designed for Small Block & LS-Powered Vehicles with Stock Trim
✔ Compatible with OEM Steering & Brake Components
✔ Perfect for Street Performance, Autocross & Daily Driving

Ideal for drivers looking for improved handling without sacrificing comfort!

Installation Notes & Tips

100% Bolt-On Installation – No Welding Required
⚙️ Ensure Proper Alignment After Installation
Torque Suspension Components to Manufacturer Specifications
Pair with Performance Tires for Maximum Handling Gains

⚠️ Rear Sway Bar Not Included – Can Be Added Separately for Additional Stability

❓ Frequently Asked Questions (FAQ)

How does this kit improve my car’s handling?

  • The combination of single-adjustable shocks, tubular control arms, and a front sway bar reduces body roll, increases steering precision, and enhances ride comfort.

Can I install this kit on my daily driver?

  • Absolutely! This kit is designed to improve handling while maintaining street-friendly ride quality.

Do I need additional parts for installation?

  • No. This kit includes all necessary mounting hardware, but a rear sway bar can be added separately for further handling improvements.

Will this kit work with my stock suspension components?

  • Yes! This kit is fully compatible with OEM components and works as a direct bolt-on upgrade.

Is professional installation required?

  • No. This kit is designed for DIY installation, but a professional alignment is recommended after installation.

Call to Action – Upgrade Your Suspension for a More Controlled Ride!

Transform your vehicle’s handling with the QA1 Level 1 Handling Suspension Kit!

✔ Single Adjustable Shocks for Custom Ride Comfort & Performance
✔ 1.25” Hollow Front Sway Bar for Reduced Body Roll
✔ Tubular Chromoly Control Arms for Strength & Stability
✔ Direct Bolt-On Installation – No Cutting or Welding Required

Order Now & Enjoy Smoother, More Responsive Handling!

Overview

Brand:
QA1
Manufacturer’s Part Number:
HK21-CRB2
Part Type:
Suspension Handling Packages
Product Line:
QA1 Level 1 Handling Suspension Kits
Summit Racing Part Number:
QA1-HK21-CRB2
UPC:
806990167293
Front Coil Springs Included:
No
Rear Coil Springs Included:
No
Rear Leaf Springs Included:
No
Front Shocks/Struts Included:
Yes
Front Shock Type:
Single adjustable
Rear Shocks/Struts Included:
Yes
Rear Shock Type:
Single adjustable
Front Sway Bar Included:
Yes
Front Sway Bar Color:
Black
Front Sway Bar Type:
Hollow
Front Sway Bar Diameter (in.):
1.250 in.
Rear Sway Bar Included:
No
Tie Rod Sleeves Included:
Yes
End Link Bushings Included:
No
Rear Leaf Spring Bushings Included:
No
Sway Bar Bushings Included:
No
Upper Trailing Arms Included:
No
Lower Trailing Arms Included:
No
Trailing Arm Mount Braces Included:
No
Panhard Bar Included:
No
Torque Arm Included:
No
Upper Control Arms Included:
Yes
Lower Control Arms Included:
Yes
Control Arm Style:
Tubular
Control Arm Material:
Chromoly
Control Arm Color:
Black
Front Strut Tower Bar Included:
No
K-Member Included:
Yes
K-Member Support Brace Included:
No
Rear Strut Tower Bar Included:
No
Subframe Connectors Included:
No
Chassis Stiffener Included:
No
Calipers Included:
No
Rotors Included:
No
Brake Pads Included:
No
Brake Lines Included:
No
Wheel Studs Included:
No
Center Link Included:
No
Spindles Included:
No
Inner Tie Rod Ends Included:
No
Outer Tie Rod Ends Included:
No
Bushing Material:
Polyurethane
Bushing Color:
Black
Mounting Hardware Included:
Yes
Quantity:
Sold as a kit.

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