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UMI Performance

Grand Prix Bar Rear Subframe Brace

Name: Grand Prix Bar Rear Subframe Brace
Brand: UMI Performance
SKU: 3053

$344.99 $290.99 Save $54.00

SKU: 3053

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Overview

It replaces stock frame reinforcements and the "Grand Prix Bar." The brace is constructed from 1-1/4" USA tubing with 3/16" laser-cut mounting brackets and includes Grade 8 hardware. Installation requires no drilling, using existing holes.

This brace is recommended for street, strip, auto-x, or road racing applications and is available in red or black powder coat. It is manufactured in Philipsburg, PA, USA.

Show original supplier description

The UMI Performance 3053 front reinforcement brace is engineered to enhance the rigidity of your GM G-Body's front frame by connecting the frame horns and front crossmember. This three-point brace serves as a direct replacement for the factory frame reinforcements and the "Grand Prix Bar," significantly reducing chassis flex. Constructed from durable 1-1/4" USA-made tubing and featuring 3/16" laser-cut mounting brackets, this brace is built to last. Installation is straightforward, requiring no drilling and utilizing existing mounting points for a clean, bolt-in application. The package includes Grade 8 hardware for secure attachment. Weighing just under 10 lbs, this reinforcement brace is designed to be lightweight yet effective for various driving conditions, including street use, drag strip, autocross, and road racing. It also helps to minimize common squeaks and rattles associated with the GM G-Body platform. This reinforcement brace is available in a tough red or black powder coat finish, proudly manufactured in Philipsburg, PA, USA. It has been tested and used on UMI's own G-Body "Green Machine." Please note that this brace is not currently approved for the Grand National platform when equipped with an intercooler. While UMI's testing on five different vehicles across various years did not require any modifications, occasional minor grinding might be necessary due to inherent GM G-Body production tolerances.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

Brand	UMI Performance
Part Number	3053
Category	Chassis Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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