What is the difference between monotube and twin-tube dampers?

Monotube dampers, like those used in the AST 5100 Series, have a larger piston and a single tube. This design helps prevent aeration and foaming, leading to more consistent damping performance. Twin-tube dampers use a separate reservoir and can be more prone to foaming under hard use.

Can I adjust the spring preload on these coilovers?

The AST 5100 Series coilovers allow for ride height adjustment. While specific spring preload adjustment details are not provided, the rebound damping is adjustable via a 12-position knob to fine-tune the suspension feel.

Do I need to buy new top mounts for these coilovers?

No, these AST coilovers are designed to work with your vehicle's original equipment (OEM) top mounts. This helps simplify the installation process.

AST 5100 Series Coilovers 90-05 Honda NSX 1st Gen

Specifications

Brand: AST
Part #: ACA-H2001S
UPC: astACA-H2001S

AST 5100 Series Coilovers 90-05 Honda NSX 1st Gen

Name: AST 5100 Series Coilovers 90-05 Honda NSX 1st Gen
Brand: AST
Price: 3579.52 USD
Availability: InStock

$3579.52

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1999-2005 Acura NSX. AST 5100 Series street coilovers offer adjustable ride height and rebound damping for improved road balance.

Key Features

Direct fit — verified for 1999-2005 Acura NSX
Adjustable ride height — fine-tune your vehicle's stance
12-position rebound adjustment knob — control the damper's return to extension for tailored road feel
Monotube damper design — offers a large piston for precise rebound control and consistent performance
Non-inverted front coilovers and divorced rear setup — provides a comfortable ride with maximum grip
Includes springs and designed for OEM top mounts — simplifies installation

Secure CheckoutFast Shipping631-982-0042

Fits this vehicle

Acura NSX 1999-2005

Product Details

Already running a performance setup on your 1999-2005 Acura NSX? This AST 5100 Series coilover kit is the next piece to dial in your suspension. These coilovers are built for street use, giving you a better balance between grip and comfort. You can adjust both the ride height and the rebound damping to get the feel you want.

The AST 5100 Series uses a non-inverted monotube design. Monotube dampers have a larger piston, which allows for more precise control over the rebound adjustment. This design also prevents aeration and foaming, so the damping stays consistent. The front dampers are a true coilover setup, while the rear maintains a divorced setup similar to the factory configuration for a more comfortable ride. The kit includes springs and is designed to work with your OEM top mounts.