TB Performance Front Under Brace

2004–2006, 2008–2015 Scion xB

Part #: TB-FUB-XB2

Overview

The TB Performance Front Under Brace is a precision-engineered chassis reinforcement designed specifically for the Scion xB models from 2004 to 2006 and 2008 to 2015. This under brace addresses the common issue of chassis flex and deflection that occurs during aggressive cornering, which can lead to unpredictable handling and reduced driver confidence. By stiffening the unibody and supporting the exhaust tunnel, this brace enhances vehicle stability and responsiveness, making it an essential upgrade for enthusiasts seeking improved handling dynamics without compromising daily drivability.

Ideal for drivers who demand sharper cornering performance and a more connected feel from their Scion xB, the TB Performance Front Under Brace delivers a noticeable reduction in chassis flex, translating to more precise steering input and better overall control on both street and track environments.

Key Features

Engineered to provide superior chassis rigidity and improved handling, the TB Performance Front Under Brace offers the following key features:

• Reduces chassis deflection and flex under cornering loads for enhanced stability
• Braces both the unibody structure and exhaust tunnel to minimize unwanted movement
• Heavy-duty billet CNC machined end cups ensure precise fitment and durability
• Finished with a sleek black powdercoat for corrosion resistance and a clean appearance
• Hand MIG welded in the USA for superior build quality and craftsmanship
• Direct bolt-on installation with no permanent modifications required
• Compatible with both 2004–2006 and 2008–2015 Scion xB models

Construction & Design

The TB Performance Front Under Brace is constructed from high-strength materials selected to provide maximum rigidity while maintaining a lightweight profile. The billet CNC machined end cups are crafted with precision to ensure a perfect fit and optimal load distribution across the chassis. The entire assembly is hand MIG welded in the USA, guaranteeing meticulous attention to detail and structural integrity. The black powdercoat finish not only enhances durability by protecting against rust and corrosion but also adds a refined aesthetic that complements the vehicle’s undercarriage.

Designed to integrate seamlessly with the factory mounting points, this brace reinforces critical areas of the chassis and exhaust tunnel, effectively reducing flex and improving the overall torsional stiffness of the vehicle.

Installation & Fitment

Installation of the TB Performance Front Under Brace is straightforward and requires no cutting, drilling, or permanent modifications. It bolts directly to existing chassis points on the Scion xB, making it accessible for both professional installers and experienced enthusiasts. The included hardware ensures a secure fit, and the process typically takes less than an hour with basic hand tools. This brace is compatible with Scion xB models from 2004 to 2006 and 2008 to 2015, covering both first and second-generation vehicles.

What's Included

• TB Performance Front Under Brace assembly
• Billet CNC machined end cups
• Mounting hardware kit
• Installation instructions

Ideal For

This front under brace is perfect for Scion xB owners who want to enhance their vehicle’s handling characteristics without extensive modifications. It is especially suited for enthusiasts who participate in spirited driving, autocross, or track days, as well as those who simply desire a more solid and responsive feel during everyday driving. By reducing chassis flex, this brace helps maximize the effectiveness of suspension upgrades and tire performance, making it a valuable addition to any performance-oriented build.