Description
BMW E46 M3 Coupe offset top mounts (00-06) BC Racing BR coilover kit 6/9 kg/mm
The BC Racing BR coilover kit E46 M3 (part number I-14-BR-RA) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW E46 M3 Coupe, model years 2000 to 2006. The spring rate is 6 kg/mm front and 9 kg/mm rear.
The kit is intended for an M3 Coupe that you drive every day and occasionally take to a track day or autocross. The BR series is BC Racing’s all-rounder: monotube dampers with a linear piston and a setup that remains usable on the road and does not fall short on track.
This version is supplied with offset top mounts; that is how BC Racing describes the kit for the M3 Coupe. The spring rate is 6/9 kg/mm front/rear and you adjust the damping in 30 clicks, with compression and rebound changing together.
You set the ride height entirely via the damper body, independently of the spring preload. This lets you put the M3 at the height you want without giving up damper stroke. The patented concave lower lock ring locks the height setting.
Key benefits
- All-round setup: for daily driving with the occasional track day or autocross.
- Monotube dampers with linear piston: a calm and predictable damping curve.
- 30-click damping adjustment: compression and rebound together with one knob per damper.
- Ride height independent of spring preload: lowering while retaining damper stroke.
- Spring rate 6/9 kg/mm: chosen by BC Racing for the M3 Coupe.
- Offset top mounts: standard in this version.
- Concave lower lock ring: patented BC Racing design.
- Rebuildable: the dampers can be rebuilt.
Suitable for
BMW M3 E46 Coupe, model years 2000 to 2006
- Daily driving with a tighter and lower suspension
- The occasional track day or autocross
- Drivers who want to choose their own ride height without giving up damper stroke
Technical specifications
- Manufacturer: BC Racing
- Part number: I-14-BR-RA
- Series: BR, all-round for road and track
- Spring rate front/rear: 6/9 kg/mm
- Damper design: monotube with linear piston
- Damping: 30 clicks, compression and rebound simultaneously
- Ride height: fully adjustable via the damper body, independent of the spring preload
- Top mounts: offset top mounts; pillowball top mounts or camber plates at the front, rubber or original mounting at the rear
- Contents: dampers and springs front and rear, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
- Warranty: 1 year on manufacturing defects
Fitting and delivery
The kit replaces the original suspension of your M3 Coupe. We recommend having it fitted by an experienced mechanic. Set the ride height first and then have the car aligned, because camber and toe change with the height. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily out of stock, you can still order: we will keep you informed of the delivery date.
An M3 that you simply drive during the week and take to the track at the weekend needs a suspension that can do both: exactly the role of the BR.
Why choose this BR coilover kit E46 M3?
Because you get control over ride height, damping and stance yourself, without paying for reservoirs or multi-way adjustment that you will not use on the road. For an M3 Coupe that should be tighter and lower but still remain a pleasant daily car, the BR is the logical first step.
BC Racing coilover kits for the BMW E46 M3 Coupe
Overview of the BC Racing series for the BMW E46 M3 Coupe supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.
| Series | Part number | Springs f/r | Damping | Intended for |
|---|---|---|---|---|
| BR (this kit) | I-14-BR-RA, Offset top mounts | 6/9 | 30 clicks, linear | Road with the occasional track day |
| DS | I-14-DS-DA, Offset top mounts | 6/9 | 30 clicks, digressive | Track-focused, sporty road use |
| RM | I-14-RM-MA, Central top mounts | 6/9 | 30 clicks, digressive, synthetic oil | Track days, hill climbs, tarmac rally |
| ER | I-14-ER, Camber/caster top mounts | 7/10 | 2-way, 30 clicks per direction, external reservoir | Serious track and competition use |
| ZX | I-14-ZX | 6/9 | 3-way (20/12/30 clicks), external reservoir | Competition, long sessions, drift |
| ZR | I-14-ZR, Camber/caster top mounts | 8/12 | 3-way (20/12/30 clicks), external reservoir | Competitive motorsport |
For the BMW E46 M3 True Rear, BC Racing has separate kits. Their part numbers start with I-64.
Frequently asked questions
What is the difference between the BC Racing BR and DS for the BMW E46 M3 Coupe?
The BR coilover kit E46 M3 uses a linear piston and is the all-rounder for road use with the occasional track day, while the DS has a digressive piston that damps more firmly during slow body movements and is more track-focused.
Does the BC Racing BR coilover kit E46 M3 Coupe also fit a BMW M3 Convertible?
No, this part number is for the M3 Coupe. For the M3 Convertible there is a separate BR version with part number I-121-BR-RA.
Can I adjust the damping of the BC Racing BR coilover kit E46 M3 myself?
Yes, each damper has 30 clicks. Start in the middle and turn a few clicks at a time firmer or softer until the car responds the way you want.
What is the delivery time of this BC Racing BR coilover kit for the BMW E46 M3 Coupe?
The delivery time is normally 1 to 2 weeks as long as the manufacturer has stock. If it is temporarily sold out, you can still order and we will let you know when the kit comes in.
Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.
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