Group D Customer Information:

Here at Group D, we have been using and distributing BC Racing suspension with great success for many years now. In our experience, the combination of great damping characteristics, wide damping adjustment range, independent height adjustment, durability through quality construction, a comfortable ride, the ready availability of service parts to keep your coilovers feeling fresh for many years into the future, plus BC's one year warranty, makes BC Racing the easy choice when choosing suspension for your pride and joy.

We use BC Racing suspension on our daily rides, as well as many of our Group D competition cars and our customers' cars, and we have amassed a wealth of experience throughout the years which we can pass on to our customers in order to help you to choose the correct coilover set, in the correct spring rates, for your application.

Please scroll to the bottom of this listing to check out the ride height adjustment range for this set

*Please note: Drop links are now not included in this set. It is possible to re-use your OEM links. OEM rear top mounts are also used in order to provide adequate noise cancellation in the E9X chassis*

Unless otherwise stated as a front or rear pair, each product is a full set of BC Racing coilovers. We are working to update our image gallery to display images of the actual kit for each and every set, however some sets may still have a generic image of two coilovers displayed. Don't worry, it will be a full set which you will receive!

Spring rates

There is a common misconception that coilovers will make your car uncomfortable, however this is thankfully not the case. We can have your BC Racing suspension made in pretty much any spring rates to achieve pretty much any ride quality you want, from limo-like smoothness, all the way to a hard ride for owners who want to run their cars low and with a stanced wheel fitment, and do not want their arches rubbing. We of course also cater for drift and race car customers and can provide expert knowledge in order to fine tune your suspension's performance.

A spring rate is the amount of force required to deflect a spring over a certain distance, and basically, the higher the number, the stiffer your spring will be. The first number refers to the front spring rate, and the second number refers to the rear spring rate, so for instance 6/5kg.mm means that the front coilovers have 6kg/mm springs fitted, and the rears have 5kg/mm springs fitted. BC Racing will have the correct damper fitted to each set in order to ensure that the spring and damper performance are in harmony.

A spring rate's effect on ride stiffness depends on a number of factors, mainly the chassis type and the car's weight. We will be happy to assist you in choosing the correct spring rates for the result which you want to achieve. Engine swaps and other special circumstances are not a problem.

BC Racing have a recommended spring rate for each suspension set, and this will always be the first option available from the list on our website. BC's recommended rate is designed to be a nice middle ground between comfort and handling, and will be the ideal set for 95% of customers. It is also the most cost effective.

Please feel free to contact us if you have any queries about which BR Racing set to purchase, or which spring rates to choose for your car and application.

DS Series

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BC Racing's DS Coilover system is built with digressive valving offering the same great benefits of the BR Type model and is considered a perfect choice for those who are looking for track biased coilovers. The digressive piston design gives a non linear damping curve which allows higher low speed damping to be run to control body roll through cornering, acceleration and braking whilst providing reduced high speed damping to allow the wheel to travel whilst running kerbs to prevent the impact from transmitting fully into the shell so retaining car balance.

Key Features

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• Digressive piston and damping curve

• Satin chrome finished shock body

• 30 clicks of simultaneous rebound and compression adjustment

• Ride height adjustment separate to spring preload

• Camber adjustable top mounts (depending on model)

• Pillowball top mounts

• Bearing mounted upper spring platform

• Dust boot to protect the damper seal

• Tapered bottom mount locking collar to prevent collar working loose

• Custom spring rates available

• All spare parts available with low lead times

• 1 year manufacturer warranty

Configuration

DS-DS

The DS series coilover kits are supplied with aluminium front top mounts with rubber centres and aluminium rear top mounts with rubber centres or no rear top mounts.

DS-DA

The DA Series coilover kits are supplied with aluminium camber adjustable pillowball top mounts on the front (where available) and aluminium rear top mounts with rubber centres or no rear top mounts.

DS-DN

The DN series coilover kits are supplied without front top mounts and with aluminium rear top mounts with rubber centre or no rear top mounts.

DS-DH

The DH series coilover kits are supplied with aluminium camber adjustable pillowball top mounts on the front (where available) and pillowball only on the rear or no top mounts.

Lowering Data

*Please note - this lowering data is based on the BR Series. The DS Series will be similar, but not necessarily exactly the same*

Please refer to the below image for lowering data for this set.

The 'DEF RIDE HEIGHT FROM STOCK' row tells you how much the car in the picture has been lowered.

The 'DEF. LOWERING DATA' row tells you the maximum and minimum ride height achievable in relation to stock ride height.

*Please note: Extra low sets are available for selected models. The extra low set will drop the maximum and minimum ride height by 20mm from the below values. The extra low set will be clearly marked with 'Ex Low' or 'Extra Low' in the title*