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Description

BC Racing BR coilover kit Nissan 370Z Z34 True Rear Fairlady Z (08-20) 9/5 kg/mm

The BC Racing BR coilover kit 370Z True Rear (part number D-121-BR-RS) is a coilover kit adjustable in height and damping, also simply called a coilover, for the Nissan 370Z and Fairlady Z (Z34), model years 2008 to 2020, in True Rear version. The spring rate is 9 kg/mm front and 5 kg/mm rear.

With this True Rear version, the rear of the 370Z also gets a complete strut, with the spring around the damper. On the standard BC Racing kit for the Z34 (D-30), the spring and damper at the rear remain separate from each other.

The BR series is BC Racing’s all-rounder: usable every day and ready for a track day or autocross. Monotube dampers with a linear piston, 30-click adjustment and a ride height that you set independently of the spring preload, now also directly on the thread at the rear.

Key benefits

• True Rear: a complete strut at the rear with the spring around the damper.
• All-round setup: for the road and the occasional track day.
• 30-click damping adjustment: compression and rebound together, per damper.
• Monotube with linear piston: predictable and easy to set up.
• Height independent of spring preload: adjustable on the thread front and rear.
• Spring rate 9/5 kg/mm: suited to the True Rear layout.
• Rubber top mounts at the front: with rubber or the original mounting at the rear.
• Rebuildable: the dampers can be rebuilt.

Suitable for

Nissan 370Z and Fairlady Z (Z34), model years 2008 to 2020, True Rear version

• Daily driving with a tighter 370Z
• The occasional track day or autocross
• Drivers who want a complete strut at the rear

Technical specifications

• Manufacturer: BC Racing
• Part number: D-121-BR-RS
• Series: BR, all-round for road and track
• Version: True Rear, a complete strut at the rear with the spring around the damper
• Spring rate front/rear: 9/5 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: rubber top mounts at the front, rubber or original mounting at the rear
• 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

Fitting and delivery

The kit is vehicle-specific and replaces the original dampers and springs all round. Please note: BC Racing specifies that the body shell must be reinforced before a True Rear kit is fitted. We recommend having it fitted by an experienced mechanic and having the wheel alignment reset after setting the ride height. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing does not have the kit in stock, you can still order and we will let you know the delivery date.

The BC Racing D-121-BR-RS is the True Rear BR kit for the Nissan 370Z Z34 with 9 kg/mm front and 5 kg/mm rear; BC Racing specifies a reinforced body shell for fitting.

Why choose this BR coilover kit 370Z True Rear?

With the True Rear layout you also set the height at the rear directly on the thread, which makes it easier to tune balance and ride height. At the same time, the BR keeps the 370Z perfectly usable on the road. Do bear in mind the mandatory reinforcement of the body shell before fitting.

BC Racing coilover kits for the Nissan 370Z (Z34) True Rear

Overview of the BC Racing series for the Nissan 370Z (Z34) 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, BC Racing has separate kits. Their part numbers start with D-30.

Frequently asked questions

What is the difference between the BC Racing BR True Rear and the standard BR coilover kit for the Nissan 370Z?

On the True Rear kit (D-121) the spring sits around the damper at the rear; the standard BR for the Z34 (D-30-BR-RS) keeps a separate spring and damper at the rear. The standard kit has 9/10 kg/mm, the BR coilover kit 370Z True Rear 9/5 kg/mm. For True Rear, BC Racing specifies a reinforced body shell.

BC Racing BR or DS True Rear for the Nissan 370Z, which one suits me?

If you mainly drive on the road with the occasional track day, choose the BR. The DS True Rear has a digressive piston that damps more firmly at slow movements and is more track-focused.

Does the BC Racing BR True Rear coilover kit fit every Nissan 370Z and Fairlady Z?

Yes, BC Racing releases this True Rear kit for the Nissan 370Z and Fairlady Z (Z34) from 2008 to 2020 and does not list any exceptions. If you are unsure about a Roadster or NISMO version, contact us and we will confirm the fit.

What is the delivery time of the BC Racing BR True Rear coilover kit for the Nissan 370Z?

The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily sold out, you can still order it and we will keep you informed.

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.