Description
UMI Performance Corner Max Kits – Precision Handling for Ultimate Performance!
The UMI Performance Corner Max Kit (406401-B) is the ultimate bolt-on suspension system designed for track and high-performance driving. With precision-engineered tubular control arms, tall ball joints, race-calibrated shocks, and adjustable geometry components, this kit pushes the limits of handling, response, and stability on aggressive street builds and road-course machines.
No chassis modifications required – designed as a direct bolt-on upgrade!
Tested & proven on UMI’s 1972 LeMans race car!
What’s Included in the Kit?
✅ UMI Double Adjustable Coilover Shocks (Front) – 40-click rebound adjustment for fine-tuning damping response
✅ 850 lb./in. Race-Proven Coil Springs – Designed for superior grip & cornering performance
✅ Tubular Upper & Lower Control Arms – Precision alignment & structural reinforcement
✅ Tall Ball Joints (1.5 in. Lower, 0.9 in. Upper) – Improved suspension geometry for max camber gain
✅ 1 5/16 in. Solid Front Sway Bar – Drastically reduces body roll & improves weight transfer
✅ Swivel End Links – Allows for proper motion and balance in high-speed cornering
✅ Bump Steer Kit – Eliminates unwanted steering deflections for precision handling
✅ Adjusting Wrench & Thrust Bearings – Easy ride height tuning at the track or street
✅ Spherical Bearings & Delrin Bushings – Superior articulation & reduced suspension friction
✅ Powdercoated Steel Components – Built to withstand aggressive driving & long-term durability
✅ Complete Hardware Kit – Everything needed for a professional installation
Designed to maximize handling while maintaining a comfortable ride on the street!
Technical Specifications
| Feature | Details |
|---|---|
| Brand | UMI Performance |
| MFG. Part # | 406401-B |
| Product Type | Suspension Handling Package |
| Front Coil Springs Included? | ✅ Yes – 850 lb./in. Spring Rate |
| Rear Coil Springs Included? | ❌ No |
| Shocks Included? | ✅ Yes – Double Adjustable Monotube Coilovers (Front) |
| Upper & Lower Control Arms? | ✅ Yes – Tubular Design, Geometry-Corrected |
| Front Sway Bar? | ✅ Yes – 1 5/16 in. Solid Bar with Swivel End Links |
| Rear Sway Bar? | ❌ No |
| Trailing Arms? | ❌ No |
| Panhard Bar? | ❌ No |
| Bump Steer Kit? | ✅ Yes – Fine-Tune Front Suspension Geometry |
| Camber Gain? | 1.2° per inch |
| Max Static Caster? | Up to 10° |
| Shock Adjustability? | 40 Clicks of Rebound Adjustment |
| Bushing Material | Spherical Bearings & Delrin® |
| Mounting Hardware Included? | ✅ Yes |
| Installation Type | Bolt-On – No Welding Required |
| Fitment | GM Muscle Cars – Stock Spindle Compatibility |
⚡ Transform your car’s steering response, grip, and agility on the street and track!
Fitment & Compatibility
✔ Designed for GM Muscle Cars (Stock Spindle Applications)
✔ Direct Bolt-In Fitment – No Fabrication or Modifications Required
✔ Perfect for Pro-Touring, Road Racing, & Performance Street Builds
Optimized for handling, stability, and control at high speeds!
Installation Notes & Tips
100% Bolt-On Installation – No Chassis Modifications Required
⚙️ Ensure Proper Alignment After Installation for Maximum Performance
Bump Steer Kit & Camber Adjustments Provide Fine-Tuned Handling
Quick-Change Spring System Makes On-Track Adjustments Easy
⚠️ Professional installation is recommended for best results and alignment precision!
❓ Frequently Asked Questions (FAQ)
What makes the UMI Corner Max Kit different from other suspension kits?
- This kit optimizes front-end geometry with taller ball joints, high-rate springs, and a bump steer kit, resulting in sharp cornering, increased stability, and a superior driving experience.
Can I adjust ride height and suspension stiffness?
- Yes! The coilovers allow for ride height adjustments and feature 40-click rebound adjustability for precise tuning to your driving needs.
Is this kit suitable for daily driving?
- Absolutely! While designed for performance handling, it maintains a comfortable ride quality, making it perfect for street-driven pro-touring builds.
Does this kit require cutting or welding?
- No welding or cutting is required! This kit bolts directly onto your factory chassis and spindles.
What’s included in the bump steer kit?
- The bump steer kit helps fine-tune steering response, eliminating unwanted toe changes during suspension movement.
Call to Action – Elevate Your Suspension Today!
Upgrade your GM muscle car with the UMI Performance Corner Max Kit for the ultimate cornering experience!
✔ Race-Proven Handling for Street & Track
✔ Bolt-On Installation – No Cutting or Welding Required
✔ Double Adjustable Coilovers for Maximum Control
✔ Geometry-Corrected A-Arms & Tall Ball Joints for Stability
Order Now & Experience the Best in Pro-Touring Suspension!
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