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1991–2005 Acura NSX, first generation chassis

This car is a unibody, so there's no separate frame to replace. The way to modernize it is to upgrade the original suspension, stiffen the body shell and fix the known weak spots.

Upgrade the original chassis

How it's built
Aluminum unibody (monocoque)
Front suspension
Double wishbone suspension with forged aluminum arms, coil-over dampers and a compliance pivot. Rack-and-pinion steering, power assisted on automatics and later cars.
Rear suspension
Double wishbone independent rear suspension with forged aluminum arms and rubber-bushed toe links. The differential is part of the mid-mounted transaxle.
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 the body or frame? We list 1 kit for this car, such as frame rails, subframe connectors and braces, on its Chassis stiffening page.

Suspension and steering kits for the original chassis

AreaKitWhat it doesPrice
Coilovers BC Racing 91-05 Acura NSX coilovers BC Racing vehicle page; price is the lowest listed option. $1,215 from Source
Coilovers Fortune Auto Acura NSX (NA1/NA2) 1991-2005 - 500 Series Coilovers Fortune Auto 500 Series; price is the lowest listed option. $1,978 from Source
Coilovers Bilstein Bilstein HD Damper Set - NSX, 1991-05 Direct-replacement dampers for all four corners using factory springs. $939.75 set of four Source
Front suspension Cedar Ridge Non-Compliance Front Pivot Clamps - NSX, 1991-05 Clamps that lock the front compliance pivot to reduce toe change. $252 Source
Rear suspension ScienceofSpeed Non-Compliance Toe-Links - NSX, 1991-05 Aluminum rear toe links with rod ends and hardware. $236.25 Source