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Description

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

The BC Racing DS coilover kit 370Z True Rear (part number D-121-DS-DS) 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.

The DS True Rear for the 370Z combines track-focused damping with a complete strut at the rear. Whereas the standard Z34 kit has a separate spring and damper at the rear, with True Rear the spring sits around the damper, just as at the front.

The monotube dampers have a digressive piston in a satin chrome damper body and 30-click adjustment. You set the ride height independently of the spring preload. Rubber top mounts are fitted at the front.

Key benefits

• True Rear: a complete strut at the rear with the spring around the damper.
• Digressive piston: firmer damping of slow body movements (0 to 50 mm/s).
• 30-click adjustable: compression and rebound together, per damper.
• Height independent of spring preload: on the thread front and rear.
• Spring rate 9/5 kg/mm: the same as the BR and ZX True Rear.
• Rubber top mounts at the front: with rubber or the original mounting at the rear.
• Satin chrome damper body: the recognisable DS finish.
• Rebuildable: the dampers can be rebuilt.

Suitable for

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

• Regular track days
• Sporty road use with track-focused damping
• Z34 drivers who want a complete strut at the rear

Technical specifications

• Manufacturer: BC Racing
• Part number: D-121-DS-DS
• Series: DS, track-focused
• 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 digressive piston, satin chrome damper body
• 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; noise from track use is not covered by the warranty

Fitting and delivery

This coilover kit is specific to the Z34 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. An experienced mechanic is recommended for the installation; afterwards, have the wheel alignment reset. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing does not have it in stock, you can still order; we will let you know when it arrives.

The BC Racing D-121-DS-DS is a track-focused True Rear coilover kit for the Nissan 370Z Z34 with digressive monotube dampers and 9/5 kg/mm springs.

Why choose this DS coilover kit 370Z True Rear?

This kit is intended for a 370Z that goes on track more often. The digressive piston keeps the car calmer on turn-in and under braking, and with True Rear you also set the height at the rear directly on the thread. When fitting, do allow for the reinforcement of the body shell that BC Racing specifies.

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 DS True Rear and the BR True Rear for the Nissan 370Z?

The DS has a digressive piston and is track-focused, the BR a linear piston for mainly road use. The springs (9/5 kg/mm) and the True Rear layout are the same. If you go on track often, the DS coilover kit 370Z True Rear is the better match.

What does True Rear mean for the BC Racing DS coilover kit for the Nissan 370Z?

True Rear means that the rear also gets a complete strut, with the spring around the damper. The standard DS for the Z34 (D-30-DS-DS) keeps a separate spring and damper at the rear and has 9/10 kg/mm. For True Rear, BC Racing specifies a reinforced body shell.

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

Yes, BC Racing releases the D-121-DS-DS for the 370Z and Fairlady Z (Z34) from 2008 to 2020, with no exceptions in the application list. If you are unsure about a Roadster or NISMO version, we will be happy to confirm the fit for you.

How quickly is the BC Racing DS True Rear coilover kit for the Nissan 370Z delivered?

Normally within 1 to 2 weeks, as long as the manufacturer has stock. If it is temporarily unavailable, you can still order and we will let you know the delivery date.

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.