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Chassis Components› Chassis and Frame Components

Ultra Racing

Rear Lower Brace

Name: Rear Lower Brace
Brand: Ultra Racing
SKU: URTW-RL4-2942

$142.15

SKU: URTW-RL4-2942

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Ultra Racing Rear Lower Brace is a chassis and frame component designed to enhance vehicle rigidity. It is constructed from high-quality steel plates, hollow steel tubes, and oval tubes, with plate thicknesses ranging from 4mm to 5mm and tube thicknesses from 1.2mm to 1.6mm. This brace is race-proven through motorsport events and is designed to be a direct fit, utilizing original mounting hardware.

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The Ultra Racing Rear Lower Brace (URTW-RL4-2942) is engineered to significantly improve chassis stiffness, steering feedback, and road handling. It addresses the inherent flex and deformity that occurs in a vehicle's chassis during dynamic driving conditions like hard cornering, braking, and acceleration. By stabilizing the chassis, this brace helps to prevent negative handling traits such as understeering and oversteering, ultimately leading to better tire grip and a more confident driving experience. Ultra Racing's commitment to quality is further demonstrated by their Motorsport Division, which actively participates in track racing, autocross, and drifting competitions to refine their products. This straightforward installation process makes it an accessible upgrade for drivers seeking to enhance their vehicle's performance and stability. The brace is specifically designed for the Lexus IS300h (2013+), IS 200T, and IS 250 models, and also fits the RC 200T.

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.

Fitment

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Specifications

Brand	Ultra Racing
Part Number	URTW-RL4-2942
Category	Chassis Components

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Returns & Fitment

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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