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Description

BMW E93 M3 Convertible without EDC (08-13) BC Racing BR coilover kit 6/10 kg/mm

The BC Racing BR coilover kit M3 E93 (part number I-154-BR-RA) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW M3 E93 Convertible without EDC, model years 2008 to 2013. The spring rate is 6 kg/mm front and 10 kg/mm rear.

This BR kit is intended for the M3 E93 Convertible that does not have EDC, the electronic damper control, from the factory. The BR series is BC Racing’s all-rounder: a tighter suspension for everyday use, with enough reserve for a track day or autocross.

You get monotube dampers with a linear piston, 30 clicks to adjust compression and rebound together and a ride height that you set via the damper body independently of the spring preload. The spring rate of 6 kg/mm front and 10 kg/mm rear is the same as that of the BR kit for the E93 with EDC (I-153-BR-RA).

Key benefits

• For the M3 E93 without EDC: tailored to the Convertible with conventional dampers.
• Ride height independent of spring preload: you change the height without changing the spring preload.
• 30-click damping adjustment: soft for long drives or firmer for a track day.
• Monotube with linear piston: predictable and easy to set up.
• Spring rate 6/10 kg/mm: the same springs as on the E93 with EDC.
• Pillowball top mounts at the front: or camber plates; rubber or the original mounting at the rear.
• Concave lower lock ring: patented by BC Racing, so the height stays securely locked.
• Rebuildable: the dampers can be rebuilt.

Suitable for

BMW M3 E93 Convertible without EDC, rear-wheel drive, model years 2008 to 2013; not for the E93 with EDC and not for the M3 E90 Sedan and E92 Coupe

• Sporty driving with the M3 Convertible on the road
• The occasional track day or autocross
• Choosing the ride height yourself, independently of the spring preload

Technical specifications

• Manufacturer: BC Racing
• Part number: I-154-BR-RA
• Series: BR, all-round for road and track
• Version: for the M3 E93 without EDC
• Spring rate front/rear: 6/10 kg/mm
• Damper design: monotube with linear piston
• Damping: 30 clicks, compression and rebound simultaneously
• Ride height: adjustable via the damper body, independent of the spring preload
• 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 is vehicle-specific and replaces the original dampers and springs. We recommend having it fitted by an experienced mechanic. According to BC Racing UK, some cars may need a plug-in kit to prevent an error message. On some cars the pillowball top mount at the front requires a small modification to the upper mounting; if in doubt, contact us. After adjusting the ride height, have the wheel alignment checked, because camber and toe change as well. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing temporarily does not have the kit in stock, you can still order and we will keep you informed of the delivery date.

For the BMW M3 E93 Convertible without EDC, BC Racing supplies the BR kit I-154-BR-RA, with 6 kg/mm front, 10 kg/mm rear and 30-click damping adjustment.

Why choose this BR coilover kit M3 E93?

The M3 E93 combines an open roof with the M3’s V8, but after years of use the original dampers are often worn. This kit gives the Convertible tight and predictable road behaviour again, with a ride height and damping that you decide yourself. Because the dampers are rebuildable, you can have them rebuilt later instead of replacing them.

BC Racing coilover kits for the BMW M3 E93 without EDC

Overview of the BC Racing series for the BMW M3 E93 without EDC supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.

For the BMW M3 E93 with EDC, BC Racing has separate kits. Their part numbers start with I-153.

Frequently asked questions

Does the BC Racing BR coilover kit I-154 also fit a BMW M3 E93 with EDC?

No, this kit is for the M3 E93 Convertible without EDC. If your car does have EDC, choose the BR kit I-153-BR-RA, which BC Racing specifies in combination with an EDC delete kit. For the M3 E90 Sedan and the E92 Coupe there are other kits again.

Is the BC Racing BR for the BMW M3 E93 without EDC a better choice than the DS?

For road use, yes: the BR has a linear piston and is made for daily driving with the occasional track day, while the DS with its digressive piston is more track-focused. For the M3 E93 without EDC, Race4DriftParts supplies the BR coilover kit M3 E93 with part number I-154-BR-RA. If you are looking for a different series, please contact us.

Do I need extra parts for the BC Racing BR coilover kit on the BMW M3 E93?

Sometimes: according to BC Racing UK, some cars may need a plug-in kit to prevent an error message. If in doubt, contact us and we will look into it for your car. The kit itself contains dampers and springs front and rear, lower mounts, top mounts where applicable and adjustment spanners.

How quickly is the BC Racing BR coilover kit for the BMW M3 E93 without EDC delivered?

Within 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily unavailable from BC Racing, you can still order it and we will let you know when it is coming.

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.