Description

UMI Performance Stage 3.5 Handling Kit – Ultimate Pro-Touring Upgrade!

The UMI Performance Stage 3.5 Handling Kit is designed for enthusiasts who want a pro-touring-inspired suspension system that delivers track-level performance without sacrificing street comfort. The package eliminates body roll, improves steering response, and enhances overall vehicle stability for spirited backroad driving, auto-crossing, or track days.

Perfect for aggressive street builds, weekend warriors, and autocross competitors!

What’s Included in the Kit?

✅ Tubular Lower Front A-Arms – Equipped with Delrin® bushings for reduced deflection and enhanced control
✅ Tubular Upper Front A-Arms – Features Delrin® bushings and ½” taller ball joints for optimized geometry
✅ Heavy-Duty 1.25” Front Sway Bar – Helps eliminate body roll and sharpen steering response
✅ Adjustable 1” Pro-Touring Rear Sway Bar – Allows fine-tuning of handling characteristics
✅ 1” Lowering Springs (Linear Spring Rate) – Improves stance and lowers center of gravity for better grip
✅ Tubular Rear Lower Control Arms – Features roto-joints for maximum articulation and durability
✅ Adjustable Rear Upper Control Arms – Enhances traction and pinion angle tuning
✅ Tubular Frame Braces – Strengthens chassis rigidity for improved cornering and straight-line stability
✅ Replacement Rear-End Housing Bushings – Eliminates excess movement for a tighter feel
✅ Front Upper & Lower Grade 8 Hardware Kit – Ensures a secure and high-strength installation
✅ Rear Control Arm Grade 8 Hardware Kit – Provides durability under aggressive driving conditions
✅ 4 RideTech HQ Shocks – Delivers rebound adjustment for fine-tuned ride quality

A complete package engineered for aggressive handling and control!

Technical Specifications

Designed to deliver precision handling, chassis rigidity, and race-proven performance!

Fitment & Compatibility

✔ Ideal for GM A-Body Muscle Cars Looking for a Performance Suspension Upgrade
✔ Direct Bolt-On Fitment – No Major Modifications Required
✔ Perfect for Street, AutoX, & Track Applications
✔ Works with Factory & Aftermarket Wheels

Brings modern handling technology to classic muscle cars!

Installation Notes & Tips

No Major Modifications Required – Direct Bolt-On Fitment
Professional Installation Recommended for Best Performance & Alignment
Ensure Proper Wheel Alignment After Installation
Check for Wheel Clearance When Using Lowering Springs & Sway Bars

Upgrade your suspension and experience precise handling like never before!

❓ Frequently Asked Questions (FAQ)

How does the UMI Performance Stage 3.5 Kit improve my vehicle’s handling?

• The combination of RideTech adjustable shocks, tubular control arms, and sway bars enhances steering precision, eliminates body roll, and improves high-speed stability.

Will this kit work with my factory steering components?

• Yes! This kit is fully compatible with OEM or aftermarket steering setups.

Does this kit lower my car?

• Yes! It features 1” lowering springs, improving stance and lowering the center of gravity for better cornering.

Is professional installation required?

• While this kit is bolt-on, professional installation is recommended for proper alignment and suspension tuning.

Can I use this kit for track racing?

• Absolutely! It’s designed for street, autocross, and pro-touring applications.

Call to Action – Upgrade Your Suspension Today!

UMI Performance Stage 3.5 Handling Kit – The Ultimate A-Body Handling Upgrade!

✔ Tubular Control Arms & Frame Braces for Rigidity
✔ RideTech Adjustable Shocks for Performance Tuning
✔ 1” Lowering Springs for a Sporty Stance & Improved Handling
✔ Adjustable Rear Sway Bar for Optimized Traction
✔ Direct Bolt-On Installation – No Guesswork, Just Performance!

Order Now & Transform Your Classic Muscle Car into a Modern Handling Machine!

Overview

Brand:
UMI Performance
Manufacturer’s Part Number:
GBF035-2-B
Part Type:
Suspension Handling Packages
Product Line:
UMI Performance Stage 3.5 Handling Kits
Summit Racing Part Number:
UPI-GBF035-2-B
Front Coil Springs Included:
Yes
Rear Coil Springs Included:
Yes
Rear Leaf Springs Included:
No
Front Shocks/Struts Included:
Yes
Front Shock Type:
Non-adjustable
Rear Shocks/Struts Included:
Yes
Rear Shock Type:
Non-adjustable
Front Sway Bar Included:
Yes
Front Sway Bar Color:
Black
Front Sway Bar Type:
Solid
Front Sway Bar Diameter (in.):
1.250 in.
Front Sway Bar Diameter (mm):
31.75 mm
Rear Sway Bar Included:
Yes
Rear Sway Bar Color:
Black
Rear Sway Bar Type:
Solid
Rear Sway Bar Diameter (in.):
1.000 in.
Rear Sway Bar Diameter (mm):
25.40 mm
Tie Rod Sleeves Included:
No
End Link Bushings Included:
Yes
Rear Leaf Spring Bushings Included:
No
Sway Bar Bushings Included:
Yes
Upper Trailing Arms Included:
Yes
Lower Trailing Arms Included:
Yes
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:
Steel
Control Arm Color:
Black
Front Strut Tower Bar Included:
No
K-Member Included:
No
K-Member Support Brace Included:
No
Rear Strut Tower Bar Included:
No
Subframe Connectors Included:
No
Chassis Stiffener Included:
Yes
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:
Delrin®
Bushing Color:
Black
Mounting Hardware Included:
Yes
Quantity:
Sold as a kit.
Notes:
Rear sway bar is adjustable.