The Per4mance Development Billet Race Brace adds another level of rear differential support for 2015-2023 V8 Dodge Charger, Challenger, and Chrysler 300 rear-wheel-drive applications. Designed to work in conjunction with other Per4mance Development differential braces, the Race Brace helps provide more consistent pinion alignment, improved driving dynamics, and additional protection against secondary damage caused by a driveshaft failure. Each brace begins as a solid 12 x 6 x 1.5-inch piece of T-6061 billet aluminum before being waterjet cut and CNC machined into its final form. The latest design incorporates a revised pad along with chemical-resistant, automotive-grade shrink tubing around the brace’s pad area. Finished in satin black powder coat and manufactured in the USA, the Billet Race Brace is a purpose-built upgrade for Gen 3 HEMI owners looking to reinforce the drivetrain for hard street driving, drag racing, and higher-horsepower applications.

Putting more power through a Gen 3 HEMI is only part of building a capable performance car. The independent rear suspension and differential also have to manage that power during hard acceleration, launches, and rapid load changes. Per4mance Development developed the Billet Race Brace as an additional stage of differential protection, giving owners another reinforcement option beyond the company’s primary differential brace systems.

One of the Race Brace’s key benefits is more consistent pinion alignment. Maintaining better control of drivetrain movement can contribute to improved rear-end behavior as power is transferred through the differential and into the tires. Per4mance Development also lists improved driving dynamics as a benefit, making the brace relevant for cars that see aggressive street driving in addition to dedicated track use.

The Race Brace also provides another layer of protection in the event of a driveshaft failure. A failed driveshaft can create secondary damage around the rear differential and surrounding drivetrain components. Per4mance Development specifically designed the Race Brace to help protect against this type of secondary damage, adding value for owners who regularly subject their vehicles to hard launches or increased drivetrain loads.

Construction is appropriately substantial for its intended use. Per4mance Development starts with a 12-inch by 6-inch by 1.5-inch solid piece of T-6061 billet aluminum, then waterjet cuts and CNC machines the material for the final design. The latest version adds a revised contact pad and chemical-resistant automotive-grade shrink tubing around the pad area. A satin black powder-coated finish provides a clean appearance and additional surface protection. The design has also been awarded a U.S. Design Patent.

Fitment includes 2015-2023 V8 Dodge Charger, Dodge Challenger, and Chrysler 300 RWD models, making it applicable across popular Gen 3 HEMI combinations including 5.7L HEMI, 6.4L 392, and supercharged 6.2L platforms when equipped in the supported chassis. This gives Scat Pack, SRT, Hellcat, Redeye, Demon, and other V8 RWD owners a drivetrain upgrade that can support everything from a mildly modified street car to a serious drag-oriented build.

Importantly, the Race Brace is intended as additional support and can be combined with any Per4mance Development brace. Owners should also verify exhaust clearance before ordering, as the manufacturer states that certain aftermarket exhaust valve bypass devices can interfere with fitment.

For Gen 3 HEMI owners already adding power, traction, and drivetrain upgrades, the Per4mance Development Billet Race Brace is a logical supporting modification that reinforces an area of the vehicle that becomes increasingly important as performance increases.

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Specifications & Features

• Manufacturer: Per4mance Development
• Product Name: Billet Race Brace
• Manufacturer SKU: BRB
• Product Type: Supplemental rear differential support brace
• Material: T-6061 billet aluminum
• Manufacturing Process: Waterjet cut and CNC machined
• Starting Billet Size: 12 x 6 x 1.5 inches
• Finished Product Dimensions: Not specified by manufacturer
• Weight: Not specified by manufacturer
• Color: Satin black
• Finish: Powder-coated
• Vehicle Compatibility: Dodge Charger V8 RWD, Dodge Challenger V8 RWD, Chrysler 300 V8 RWD
• Year Compatibility: 2015-2023 for the Gen 3 HEMI applications covered here
• Engine Compatibility: Compatible chassis applications include 5.7L, 6.4L, and supercharged 6.2L Gen 3 HEMI configurations
• Drivetrain Compatibility: Rear-wheel drive
• Gen 3 HEMI Applications: R/T, Scat Pack, SRT, Hellcat, Redeye, Demon, and other supported V8 RWD configurations
• Primary Function: Adds supplemental support to the rear differential and IRS system
• Pinion Alignment: Designed to promote more consistent pinion alignment
• Drivetrain Protection: Helps protect against secondary damage resulting from driveshaft failure
• Driving Dynamics: Designed to improve rear drivetrain behavior under load
• Brace Compatibility: Can be added to any Per4mance Development differential brace
• Updated Design: Revised pad design with chemical-resistant, automotive-grade shrink tubing around the pad area
• Patent: Awarded a U.S. Design Patent
• Country of Manufacture: USA
• Recommended Uses: High-horsepower street builds, drag racing, hard launches, performance driving, Hellcat builds, Scat Pack builds, Demon/Redeye builds, and upgraded Gen 3 HEMI drivetrains
• Exhaust Fitment Note: Will not fit with certain aftermarket exhaust valve bypass devices. Verify clearance before ordering.
• Warranty Note: Manufacturer states that use of the Race Brace may impact the differential manufacturer’s warranty.