Underbrace v. t. : To brace, fasten, or bind underneath or below.

Example:


Taxonomy
Sustec, Underbrace, braces, Chassis Reinforcement, Tanabe Racing Development, vehicles, i-beam, lightweight, surplus weight, rigidity, Exhaust, unibody, undercarriage, USA Quality, Coilover Springs, stability, stabilizers, Suspension Component.

Defination from the web:
UNDERBRACE prevents flexing of the unibody by connecting specific points of the undercarriage to reinforce the chassis. ... The underbrace significantly increases rigidity, without adding surplus weight. ...