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Description

BMW E90/E92 M3 True Rear Sedan/Coupe (06-13) BC Racing ZX coilover kit 6/6 kg/mm

The BC Racing ZX coilover kit M3 E92 True Rear (part number I-117-ZX) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW M3 E90 and E92, with or without EDC, model years 2006 to 2013, in True Rear version. The spring rate is 6 kg/mm front and 6 kg/mm rear.

The ZX series combines the BC Racing DS and ER into a 3-way adjustable coilover kit for competitive track use, long sessions and demanding drifting. This version is True Rear: the M3 E90 or E92 also gets a strut with the spring around the damper at the rear.

The upright monotube dampers have a double piston, an external reservoir and racing oil with a very high viscosity index. You set the low-speed compression in 20 clicks, the high-speed compression in 12 clicks and the rebound in 30 clicks.

Key benefits

• 3-way adjustable: 20 clicks low-speed compression, 12 clicks high-speed compression and 30 clicks rebound.
• External reservoir: with a double piston in an upright monotube.
• Racing oil: with a very high viscosity index, chosen for long sessions.
• Digressive damping: control over the body during slow movements.
• True Rear version: the rear axle also gets a strut with the spring around the damper.
• Replaceable upper mounting: with camber plates on suitable kits; rubber top mounts optional.
• Continuously adjustable ride height: via the damper body.
• Rebuildable: the dampers can be rebuilt.

Suitable for

BMW M3 E90 Sedan and M3 E92 Coupe, rear-wheel drive, model years 2006 to 2013, with or without EDC (with EDC an EDC delete kit is required, not included); True Rear version; not for the M3 E93 Convertible

• Competitive track use and long sessions
• Demanding drifting with the M3
• Tuning compression separately for low and high speed

Technical specifications

• Manufacturer: BC Racing
• Part number: I-117-ZX
• Series: ZX, 3-way with external reservoir
• Version: True Rear, a strut with the spring around the damper at the rear as well; with EDC an EDC delete kit is required, not included
• Spring rate front/rear: 6/6 kg/mm
• Damper design: upright monotube with double piston and external reservoir, digressive, racing oil with a very high viscosity index
• Damping: 3-way, 20 clicks low-speed compression, 12 clicks high-speed compression, 30 clicks rebound
• Ride height: continuously adjustable via the damper body
• Top mounts: replaceable upper mounting, camber plates on suitable kits, rubber top mounts optional
• Contents: 4 struts with dampers and springs, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
• Warranty: 1 year on manufacturing defects; noise from track use is not covered by the warranty

Fitting and delivery

The kit is vehicle-specific and replaces the original dampers and springs front and rear. We recommend having it fitted by an experienced mechanic. Please note: BC Racing specifies that with a True Rear kit the body shell must be reinforced before fitting. For an M3 with EDC, BC Racing specifies an EDC delete kit, which is not included in the kit and is not supplied by BC Racing. After setting the ride height, have the wheel alignment set, because camber and toe change as well. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily unavailable from BC Racing, you can still order and we will keep you informed of the delivery date.

The BC Racing ZX kit I-117-ZX for the BMW M3 E90 and E92 is 3-way adjustable, with 20 clicks of low-speed compression, 12 clicks of high-speed compression and 30 clicks of rebound.

Why choose this ZX coilover kit M3 E92 True Rear?

An M3 that runs long track sessions or is used for drifting needs damping that you can tune down to the last detail. With the ZX you adjust the compression separately at low and high speed, and the True Rear setup gives you full freedom of adjustment at the rear as well. That way you tune the M3 to the circuit, the tyres and your own driving style.

BC Racing coilover kits for the BMW M3 E90/E92 True Rear

Overview of the BC Racing series for the BMW M3 E90/E92 True Rear supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.

For the standard version without True Rear, with the original separate spring and damper at the rear, BC Racing has separate kits for the M3 E90 and E92. Their part numbers start with I-13 (with EDC) or I-39 (without EDC).

Frequently asked questions

Does the BC Racing ZX True Rear kit I-117 fit the BMW M3 E90 and E92 with and without EDC?

Yes, BC Racing releases this kit for the M3 E90 Sedan and E92 Coupe from 2006 to 2013, with and without EDC. With EDC an EDC delete kit is required; it is not part of the kit. The M3 E93 Convertible has its own BC Racing kits.

When do you choose the BC Racing ZX instead of the ER True Rear kit for the M3 E92?

Choose the ZX if you want to adjust the compression separately for low and high speed. The ZX coilover kit M3 E92 True Rear has 20 and 12 clicks of compression plus 30 clicks of rebound, the ER 30 clicks of compression and 30 clicks of rebound. Both have an external reservoir and are intended for serious track use.

Does the body shell need to be reinforced for the BC Racing ZX True Rear kit on the BMW M3 E92?

Yes, BC Racing specifies that with a True Rear kit the body shell must be reinforced before fitting. Have that work and the fitting of the kit carried out by an experienced mechanic. Then check the wheel alignment.

What is the delivery time of the BC Racing ZX True Rear kit for the BMW M3 E90/E92?

The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If it is briefly sold out, you can still order the kit and we will let you know when it is here.

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.