Increase rear chassis rigidity and strengthen one of the IS300's most flexible suspension areas with the Xcessive Manufacturing Rear Subframe Brace Bars for the 2001-2005 Lexus IS300. Designed for performance street, drift, and track applications, these billet aluminum brace bars replace the factory braces with significantly stronger one-piece components while the included weld-in gusset kit reinforces the subframe mounting points for maximum effectiveness. Machined from solid 6061-T6 aluminum, the brace bars provide increased rigidity without adding unnecessary weight. Unlike fabricated multi-piece designs, each brace bar is machined from a single billet with no welds to fatigue or crack over time. To further strengthen the rear subframe, Xcessive Manufacturing includes weld-in gussets for both the brace bar mounting tabs and lower control arm mounting points. Increases Rear Chassis Rigidity: Replaces the factory rear subframe brace bars with stronger billet aluminum components for improved chassis stability. One-Piece Billet Construction: Precision machined from solid 6061-T6 aluminum with no welds for maximum strength and durability. Direct Bolt-On Brace Bars: Installs using the factory mounting locations and original hardware without removing the rear subframe. Complete Reinforcement Kit: Includes weld-in gussets for both the rear brace bar mounting tabs and lower control arm mounting points. Lightweight & Durable: Billet aluminum construction provides increased rigidity while minimizing additional weight. What's Included (2) Billet 6061-T6 Aluminum Rear Subframe Brace Bars (2) Lower Control Arm Mount Gussets (2) Rear Brace Bar Mount Gussets Vehicle Fitment Lexus IS300 (2001-2005) Important Notes Designed specifically for the 2001-2005 Lexus IS300. Brace bars bolt directly into the factory mounting locations using the original hardware. Rear subframe removal is not required to install the billet brace bars. Weld-in gussets require welding and refinishing after installation. Gussets are manufactured from 1/8-inch mild steel and can be welded using standard MIG or TIG welding processes. Remove paint from the welding areas before installation and refinish the subframe after welding to prevent corrosion. Professional installation is recommended. Intended for off-road, racing, drifting, and high-performance street applications. Why Choose Xcessive Manufacturing Xcessive Manufacturing designs chassis reinforcement components that improve vehicle rigidity without unnecessary complexity. Their Rear Subframe Brace Bars and reinforcement gussets strengthen critical mounting points while reducing rear suspension flex, helping deliver more predictable handling and improved chassis response during aggressive driving. Whether you're building a drift car, track car, or high-performance street IS300, the Xcessive Manufacturing Rear Subframe Brace Bars provide the strength, durability, and chassis reinforcement needed to maximize suspension performance.
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