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UMI Performance Stage 2.5 Handling Kits GBF025-R

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Parts & Accessories

UMI Performance Stage 2.5 Handling Kits GBF025-R

SKU d0d5f9595ddc

Car Chassis & Suspension Kits

$1,781.01

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.

Full policy
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.

Payment terms

Catalogue data

Specification

3 fields

Part number
d0d5f9595ddc
Department
Parts & Accessories
Category
Car Chassis & Suspension Kits

In the seller's words

Description

️ UMI Performance Stage 2.5 Handling Kits – The Ultimate Street & Track Suspension Upgrade!

Upgrade your classic GM vehicle’s ride, handling, and stance with the UMI Performance Stage 2.5 Handling Kit! Designed to combine track-worthy performance with street-friendly comfort, this kit includes Viking coilovers for adjustable ride height and shock tuning, along with race-quality components to maximize stability and cornering precision.

✔ Adjustable ride height from stock to 2” drop
✔ Double adjustable Viking coilovers for fine-tuned handling
✔ High-quality tubular control arms for improved strength & stability
✔ Massive front & rear sway bars to reduce body roll

What’s Included in the Kit?

✔ Tubular Lower Front A-Arms – With polyurethane bushings for strength & flex reduction
✔ Upper Front A-Arms – Featuring Delrin bushings & tall ball joints for improved caster/camber settings
✔ Viking Double Adjustable Coilovers – Precision height & damping control
✔ Heavy-Duty Front Sway Bar – Includes new bushings & endlinks
✔ Solid Rear Sway Bar – Heat-treated for maximum performance
✔ Tubular Rear Lower & Upper Control Arms – Equipped with polyurethane bushings
✔ Tubular Frame Braces – Reinforces chassis rigidity & stability
✔ Replacement Rear End Housing Bushings – Ensures long-lasting, noise-free operation
✔ Front & Rear Control Arm Race-Quality Hardware Kit – Everything needed for a secure installation
✔ UMI Bolt-On Rear Coilover Kit – Designed specifically for GM axle housings
✔ Thrust Bearing Kit & Spanner Wrench Kit – For coilover adjustability & easy tuning

NOTE: Rear coilover kit fits GM axle housing only—aftermarket axle housing fitment not guaranteed.

Technical Specifications

Feature Details
Brand UMI Performance
Manufacturer Part # GBF025-R
Summit Racing Part # UPI-GBF025-R
Front Coil Springs Yes
Rear Coil Springs Yes
Front Shock Type Double Adjustable Coilover
Rear Shock Type Double Adjustable Coilover
Front Sway Bar Diameter 1.250 in. (31.75mm)
Rear Sway Bar Diameter 1.000 in. (25.40mm)
Bushing Material Polyurethane/Delrin®
Control Arm Style Tubular Steel (Red Powder-Coated)
Mounting Hardware Included? Yes
Welding Required? No
Adjustable Ride Height? Yes (Stock to 2” Lowered)
Quantity Sold as a kit

Perfect for Street, AutoX, & Pro-Touring Applications!

❓ Frequently Asked Questions (FAQ)

Can I install this kit myself?

  • Yes! This kit is bolt-on and comes with all necessary hardware. A basic mechanical knowledge and tools will be needed for installation.

How much can I lower my car with this kit?

  • The Viking coilovers allow adjustable ride height from stock to 2 inches below factory height.

Is this kit suitable for daily driving?

  • Absolutely! The combination of adjustable damping, high-performance sway bars, and quality bushings makes this kit ideal for both daily driving and spirited performance driving.

Will this fit aftermarket axle housings?

  • The rear coilover kit is designed for GM axle housings only. Aftermarket housings may require modifications.

Call to Action – Upgrade Your Suspension Today!

Turn your GM vehicle into a handling beast with the UMI Performance Stage 2.5 Handling Kit!

✔ Adjustable Ride Height & Damping for Ultimate Control
✔ Stronger, Stiffer Suspension Components for Maximum Stability
✔ Heavy-Duty Sway Bars & Control Arms for Sharp Cornering
✔ Easy Bolt-On Installation – No Welding Required!

ORDER NOW & EXPERIENCE A WHOLE NEW LEVEL OF PERFORMANCE!

Overview

Brand:
UMI Performance
Manufacturer’s Part Number:
GBF025-R
Part Type:
Suspension Handling Packages
Product Line:
UMI Performance Stage 2.5 Handling Kits
Summit Racing Part Number:
UPI-GBF025-R
Front Coil Springs Included:
Yes
Rear Coil Springs Included:
Yes
Rear Leaf Springs Included:
No
Front Shocks/Struts Included:
No
Front Shock Type:
Double adjustable coilover
Rear Shocks/Struts Included:
Yes
Rear Shock Type:
Double adjustable coilover
Front Sway Bar Included:
Yes
Front Sway Bar Color:
Red
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:
Red
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:
Red
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:
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/Delrin®
Bushing Color:
Red
Mounting Hardware Included:
Yes
Quantity:
Sold as a kit.

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