A-12-ER BC Racing ER Series Coilovers - 1991-2005 Acura NSX (NA1/NA2)

BC Racing ER Series Coilovers - 1991-2005 Acura NSX (NA1/NA2)

Name: BC Racing ER Series Coilovers - 1991-2005 Acura NSX (NA1/NA2)
Brand: BC Racing
Price: 1935.0 USD
Availability: InStock

SKU: A-12-ER

$1,935.00 $2,230.00

Built to Order (about 3-6 weeks)

Product variants

Fitment Notes

Unless specified otherwise, all suspension products are designed for 2WD vehicles only.

Any notes or descriptions related to electronic damping systems (EDC, DDS, etc.) apply strictly to vehicle fitment. Aftermarket coilovers are not compatible with OEM electronic damping control systems unless explicitly stated.

Handling Time

In-Stock: 1-2 business days
Products that are in-stock and do not require customization usually ship the same business day if ordered before 2pm ET. Orders placed after 2pm ET will ship the following business day.

Out of Stock: 3-4 weeks
Products that are out of stock have an average lead time of 3-4 weeks.

Custom Builds: 3-6 weeks
Custom builds vary in time based on the options selected and available parts. Custom builds include any combination of the following options.

Extreme Low
DS/ER/RM/HM/ZR/ZX Series
Custom Spring Rates
Swift Springs
Top Mounts

Returns

Orders can be returned within 30 days of fulfillment if all rules shown below are met.

Products must be in original packaging and in a new and resalable condition.
Any product that was used or fully/partially installed is non-returnable.
Custom products, special order products, and services are non-returnable and non-refundable.
Shipping fees and tax are non-refundable.
If the return of an item was caused by an error on our part, or a manufacturer's part, we will cover the shipping fees.

More Details

2-Year Warranty

BC Racing North America offers a two-year warranty against manufacturing defects. All warranty claims must be submitted directly to BC Racing North America.

More Details

BC Racing ER Series Coilovers - 1991-2005 Acura NSX (NA1/NA2)

$1,935.00 $2,230.00

Product Details

BC Racing ER Series Coilovers for the 1991-2005 Acura NSX (NA1/NA2) are a premium suspension upgrade designed for enthusiasts who demand top-tier performance on both the street and the track. This track-ready coilover system features a mono-tube, twin-piston design with remote reservoirs, offering 30 levels of independently adjustable compression and rebound. The added reservoir increases oil capacity for improved heat dissipation, making these coilovers ideal for aggressive driving and motorsports use.

Developed through extensive on-track testing and backed by BC Racing's reputation for quality, the ER Series is a fully adjustable coilover system that delivers precision handling, customizable ride height, and unmatched tuning flexibility. Whether you're building a daily-driven street car or a competitive weekend track car, these coilovers are engineered to give your Toyota GR Corolla the performance edge it deserves.

BC Racing ER Series Coilovers are not available in Extreme Low.

Features

Highly customizable
Mono-tube damper
Linear twin-piston design
Height adjustment independent of spring compression
30-clicks of compression adjustment via the external reservoirs
30-clicks of rebound adjustment from the top of the damper
Front and rear camber plates standard on all applicable kits
Front and rear pillowball mounts standard when camber plates do not apply
Custom spring rates and Swift Springs compatible
Custom valved to match the drivers requested spring rates
Swift Springs upgrade available on most applications
2 year warranty against manufacturing defects
Fully rebuildable with replacement parts

Specifications

Part Number	A-12-ER
Part Name	ER Series Coilovers
Vehicle	1991-2005 Acura NSX
Chassis Code	NA1/NA2
Front Springs (kg/mm)	62-180-14kg
Rear Springs (kg/mm)	62-180-14kg
Front Swift Springs (kg/mm)	62-178-X
Rear Swift Springs (kg/mm)	62-178-X
Front Camber Plates	Not Applicable
Rear Camber Plates	Not Applicable

Vehicle Fitment

1991 Acura NSX (NA1/NA2)
1992 Acura NSX (NA1/NA2)
1993 Acura NSX (NA1/NA2)
1994 Acura NSX (NA1/NA2)
1995 Acura NSX (NA1/NA2)
1996 Acura NSX (NA1/NA2)
1997 Acura NSX (NA1/NA2)
1998 Acura NSX (NA1/NA2)
1999 Acura NSX (NA1/NA2)
2000 Acura NSX (NA1/NA2)
2001 Acura NSX (NA1/NA2)
2002 Acura NSX (NA1/NA2)
2003 Acura NSX (NA1/NA2)
2004 Acura NSX (NA1/NA2)
2005 Acura NSX (NA1/NA2)

Reviews / Q&A

FAQs

Please read our FAQs page to find out more.

How much will BC Coilovers lower my car?

On average, Standard Drop allows about 1-2 inches of drop range below factory ride height. Extreme Low allows about 2-3 inches of drop.

Can BC Coilovers achieve factory ride height?

No. In most cases, factory ride height cannot be achieved.

What is a custom build vs off-the-shelf kit?

The stock level displayed on our website reflects the availability of standard “off-the-shelf” kits, unless noted otherwise in the product description. Selecting any custom options—such as Extreme Low, custom spring rates, Swift Spring upgrades, or top mount changes—will result in a custom-built kit. Please note: all series except the BR Series are built to order, with the exception of select popular DS Series kits that may be in stock. Also, some popular Extreme Low kits are in stock as well. To identify these, look for "Extreme Low" in the product title.

Will the struts be valved correctly?

Yes! The shocks and/or struts are always valved to match the spring rates you choose during a custom build. There is no additional cost.

Can they be rebuilt?

Yes, all BC Racing Coilovers can be rebuilt by purchasing individual replacement parts. For example, if a strut leaks, you can simply replace the shock cartridge.

Is there rush shipping available?

Rush shipping is not offered, but all in-stock kits ship very fast— most by the next day.

Customizing the coilovers in any way will delay the shipment by a few weeks on average.