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UMI Performance Stage 2 Handling Kits ABF803-1-B

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Parts & Accessories

UMI Performance Stage 2 Handling Kits ABF803-1-B

SKU 8e5b9a660e52

Car Chassis & Suspension Kits

$1,651.88

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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.

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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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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
8e5b9a660e52
Department
Parts & Accessories
Category
Car Chassis & Suspension Kits

In the seller's words

Description

UMI Performance Stage 2 Handling Kit – Transform Your Classic Ride into a Corner-Carving Machine!

The UMI Performance Stage 2 Handling Kit (ABF803-1-B) is a complete suspension upgrade designed to make your classic car handle like a modern muscle car. By replacing worn-out factory components with precision-engineered tubular control arms, heavy-duty sway bars, and high-performance gas-charged shocks, this kit ensures exceptional ride quality, precise steering response, and reduced body roll.

Designed for a seamless installation, this kit includes everything needed to rebuild your front and rear suspension, eliminating the guesswork of sourcing individual components.

Ideal for spirited driving, backroad cruising, autocross, and even occasional drag strip action!

What’s Included in the Kit?

✅ Front & Rear Coil Springs – Lowers ride height for improved handling & stance
✅ Bilstein HD Gas-Charged Monotube Shocks (Front & Rear) – Delivers superior damping & ride comfort
✅ 1.25” Hollow Front Sway Bar & 1.00” Solid Rear Sway Bar – Reduces body roll & enhances stability
✅ Tubular Chromoly Upper & Lower Control Arms (Black Finish) – Stronger & lighter than OEM arms
✅ Rear Tubular Upper & Lower Control Arms – Ensures maximum rear-end control & traction
✅ Heavy-Duty Tubular Frame Braces – Strengthens chassis rigidity & enhances durability
✅ Polyurethane Bushings – Provides long-lasting durability & precision handling
✅ End Link & Sway Bar Bushings – Ensures smooth articulation & reduces suspension deflection
✅ All Necessary Mounting Hardware – Simplifies installation for a hassle-free upgrade

Turn your classic ride into a pro-touring beast with this all-in-one handling package!

Technical Specifications

Feature Details
Brand UMI Performance
Manufacturer Part # ABF803-1-B
Product Type Suspension Handling Package
Front Coil Springs Included? ✅ Yes
Rear Coil Springs Included? ✅ Yes
Rear Leaf Springs Included? ❌ No
Front Shocks Included? ✅ Yes (Gas-Charged Monotube)
Rear Shocks Included? ✅ Yes (Gas-Charged Monotube)
Front Sway Bar Included? ✅ Yes (Hollow, 1.25” / 32mm)
Rear Sway Bar Included? ✅ Yes (Solid, 1.00” / 25.4mm)
Upper Control Arms Included? ✅ Yes (Tubular Chromoly)
Lower Control Arms Included? ✅ Yes (Tubular Chromoly)
Bushing Material Polyurethane
Bushing Color Black
Trailing Arm Mount Braces Included? ❌ No
Panhard Bar Included? ❌ No
Torque Arm Included? ❌ No
Chassis Stiffener Included? ✅ Yes
Brake Components Included? ❌ No
Mounting Hardware Included? ✅ Yes
Notes Front ride height may be ¼” lower with full-weight big block engines
Quantity Sold as a kit

⚡ A must-have upgrade for muscle car owners looking for a modern suspension feel!

Fitment & Compatibility

✔ Designed for Classic Muscle Cars & Full-Weight Big Block Applications
✔ Optimized for Street Performance, Autocross & Drag Racing
✔ Direct Bolt-On Installation – No Welding Required

Perfect for weekend warriors and pro-touring enthusiasts who demand superior suspension performance!

Installation Notes & Tips

Bolt-On Installation – No Major Modifications Required
⚙️ Professional Alignment Recommended After Installation
Torque Suspension Components to Manufacturer Specifications
Pair with Performance Tires for Maximum Handling Gains

⚠️ Big block applications may see a slightly lower front ride height.

❓ Frequently Asked Questions (FAQ)

How does this kit improve my car’s handling?

  • The combination of lowering springs, sway bars, tubular control arms, and Bilstein HD shocks reduces body roll, increases chassis stiffness, and improves steering response for modern muscle car performance.

Do I need additional parts for installation?

  • No. This kit includes all necessary hardware, but a professional alignment is recommended after installation.

Will this kit work with stock brakes and wheels?

  • Yes. This system is designed to be compatible with factory brake setups and most aftermarket upgrades.

Can I use this kit for daily driving?

  • Absolutely! This kit is engineered for both daily driving and performance use, providing improved handling without sacrificing ride comfort.

How much will this kit lower my car?

  • Ride height is lowered to give an aggressive stance while maintaining proper suspension geometry.

Call to Action – Upgrade Your Suspension for Ultimate Performance!

Transform your classic muscle car’s handling with the UMI Performance Stage 2 Handling Kit!

✔ Complete Front & Rear Suspension Upgrade for Maximum Stability
✔ Bilstein HD Shocks & Tubular Control Arms for Superior Control
✔ Heavy-Duty Sway Bars & Chassis Stiffening Components for Pro-Touring Performance
✔ Direct Bolt-On Installation – No Welding Required

Order Now & Take Your Classic Ride to the Next Level!

Overview

Brand:
UMI Performance
Manufacturer’s Part Number:
ABF803-1-B
Part Type:
Suspension Handling Packages
Product Line:
UMI Performance Stage 2 Handling Kits
Summit Racing Part Number:
UPI-ABF803-1-B
Front Coil Springs Included:
Yes
Rear Coil Springs Included:
Yes
Rear Leaf Springs Included:
No
Front Shocks/Struts Included:
Yes
Front Shock Type:
Gas-charged monotube
Rear Shocks/Struts Included:
Yes
Rear Shock Type:
Gas-charged monotube
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:
Yes
Rear Sway Bar Color:
Black
Rear Sway Bar Type:
Solid
Rear Sway Bar Diameter (in.):
1.000 in.
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:
Chromoly
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:
Polyurethane
Bushing Color:
Black
Mounting Hardware Included:
Yes
Quantity:
Sold as a kit.
Notes:
For applications with full-weight big block engines, the ride height in the front could be 1/4 in. lower.

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