RodderMods

Chassis stiffening

1991–2005 Acura NSX, first generation chassis stiffening

1 kit to stiffen the body shell, from frame rails and connectors to braces and roll bars.

How it's built
Aluminum unibody (monocoque)
Weak spots
The aluminum body does not rust like steel, but accident repairs are specialist work and corrosion can occur where steel fasteners meet aluminum. Rubber compliance bushings and the rear toe links allow toe change under braking and cornering, and original dampers and top-mount bushings are usually worn.

Stiffening kits

Prices checked Oct 14, 2026

AreaKitWhat it isPrice
Shock & strut tower braces Carbing (sold by Andy's Auto Sport) Carbing Type R Strut Tower Bar W/ MCS (Rear) Rear strut bar listed for 91-06 NSX NA1/NA2. $724.50 Listed price on category page Source

Prices are from the linked seller pages and change often. Confirm fitment for your exact year and body style before ordering; many weld-in parts need professional installation. Some links earn us a commission.