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UMI Performance Stage 2.5 Handling Kits ABF804-1-B

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Parts & Accessories

UMI Performance Stage 2.5 Handling Kits ABF804-1-B

SKU 52c3d18426ce

Car Chassis & Suspension Kits

$2,057.06

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No warranty

Commercial use may carry a shorter period than pleasure use.

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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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Part number
52c3d18426ce
Department
Parts & Accessories
Category
Car Chassis & Suspension Kits

In the seller's words

Description

UMI Performance Stage 2.5 Handling Kit – High-Performance Suspension Upgrade!

The UMI Performance Stage 2.5 Handling Kit (ABF804-1-B) is engineered for GM vehicles, blending adjustable coilovers with race-inspired control arms, sway bars, and frame braces. This kit provides exceptional handling, ride quality, and stance adjustability, making it ideal for pro-touring, autocross, or street performance builds.

Designed for GM vehicles with stock GM axle housings – aftermarket axle compatibility is not guaranteed.

Perfect for drivers who want to fine-tune their suspension for aggressive cornering, improved stability, and a smooth ride!

What’s Included in the Kit?

✅ Viking Adjustable Coilovers (Front & Rear) – 19 Compression & Rebound Settings for complete tuning flexibility
✅ Tubular Lower Front A-Arms with Polyurethane Bushings – Stronger and lighter than OEM
✅ Upper Front A-Arms with Delrin Bushings & Tall Ball Joints – Enhances steering response and suspension geometry
✅ Heavy-Duty Front Sway Bar (1.25” Diameter) – Reduces body roll for better cornering stability
✅ Solid Rear Sway Bar (1.00” Diameter) – Keeps the rear planted for sharper handling
✅ Tubular Rear Lower Control Arms with Polyurethane Bushings – Increases stability under acceleration & braking
✅ Tubular Rear Upper Control Arms with Polyurethane Bushings – Reduces wheel hop & improves traction
✅ Tubular Frame Braces with Hardware – Reinforces chassis rigidity for better response
✅ Replacement Rear End Housing Bushings – Provides durability & reduces deflection
✅ UMI Bolt-On Rear Coilover Kit – Allows full suspension adjustability
✅ Thrust Bearing Kit (x2) & Spanner Wrench Kit – For precise suspension tuning & adjustments

Upgrade your GM vehicle’s suspension with race-inspired precision and street-friendly comfort!

Technical Specifications

Feature Details
Brand UMI Performance
Manufacturer Part # ABF804-1-B
Product Type Suspension Handling Package
Front Coil Springs Included? ✅ Yes
Rear Coil Springs Included? ✅ Yes
Front Shocks Included? ✅ Yes (Adjustable Coilover)
Rear Shocks Included? ✅ Yes (Adjustable Coilover)
Ride Height Adjustment? ✅ Yes (Stock to -2”)
Front Sway Bar Diameter 1.250” (31.75mm)
Rear Sway Bar Diameter 1.000” (25.40mm)
Upper Control Arms Included? ✅ Yes (Tubular)
Lower Control Arms Included? ✅ Yes (Tubular)
Bushing Material Polyurethane & Delrin
Subframe Connectors Included? ❌ No
Chassis Stiffener Included? ✅ Yes
Mounting Hardware Included? ✅ Yes
Installation Type Direct Bolt-On
Quantity Sold as a Kit

⚡ A must-have for GM performance builds looking to enhance steering response, cornering grip, and overall suspension dynamics!

Fitment & Compatibility

✔ Designed for GM Vehicles with Stock GM Axle Housing
✔ Direct Bolt-On Installation – No Modifications Required
✔ Ideal for Pro-Touring, Autocross, Street Performance, & Drag Racing Builds

Provides superior handling benefits while maintaining ride comfort for daily driving!

Installation Notes & Tips

100% Bolt-On Installation – No Welding Required
⚙️ Adjustable Coilovers Allow Custom Ride Height & Dampening
Ensure Proper Wheel Alignment After Installation
Professional Installation Recommended for Best Results

⚠️ Rear Coilover Kit Fits GM Axle Housing Only – Aftermarket Axle Fitment Not Guaranteed!

❓ Frequently Asked Questions (FAQ)

How does this kit improve my car’s performance?

  • The combination of adjustable coilovers, tubular control arms, and heavy-duty sway bars delivers better cornering grip, reduced body roll, and enhanced ride stability.

Can I install this kit myself?

  • Yes! This kit is bolt-on with no welding required, though a professional alignment is recommended post-installation.

Can I adjust the ride height?

  • Yes! The Viking coilovers allow height adjustment from stock to 2” lower, letting you customize your car’s stance and handling.

Is this kit compatible with aftermarket axles?

  • No guarantee. This kit is designed for GM axle housings, and aftermarket fitment is not guaranteed.

Do I need any additional parts for installation?

  • No! The kit includes all necessary components and mounting hardware for a complete suspension upgrade.

Call to Action – Upgrade Your Suspension Today!

Take your GM vehicle’s suspension to the next level with UMI Performance’s Stage 2.5 Handling Kit!

✔ Adjustable Coilovers for Custom Stance & Ride Comfort
✔ Tubular Control Arms for Maximum Stability & Steering Response
✔ Heavy-Duty Sway Bars for Sharper Cornering
✔ Bolt-On Installation – No Welding Required

Order Now & Experience Precision Handling Like Never Before!

Overview

Brand:
UMI Performance
Manufacturer’s Part Number:
ABF804-1-B
Part Type:
Suspension Handling Packages
Product Line:
UMI Performance Stage 2.5 Handling Kits
Summit Racing Part Number:
UPI-ABF804-1-B
Front Coil Springs Included:
Yes
Rear Coil Springs Included:
Yes
Rear Leaf Springs Included:
No
Front Shocks/Struts Included:
Yes
Front Shock Type:
Adjustable coilover
Rear Shocks/Struts Included:
Yes
Rear Shock Type:
Adjustable coilover
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:
Yes
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:
Polyurethane
Bushing Color:
Black
Mounting Hardware Included:
Yes
Quantity:
Sold as a kit.

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