Description
Nissan Z33 350Z True Rear Fairlady Z (03-09) BC Racing DS coilover kit 9/5 kg/mm
The BC Racing DS coilover kit 350Z True Rear (part number D-107-DS-DS) is a coilover kit adjustable in height and damping, also simply called a coilover, for the Nissan 350Z and Fairlady Z (Z33), model years 2003 to 2009, in True Rear version. The spring rate is 9 kg/mm front and 5 kg/mm rear.
The kit is intended for Z33 drivers who mainly use their car on track. True Rear means that the rear becomes a complete strut, with the spring around the damper. The original Z33 has a separate spring and a separate damper at the rear; you will find that construction in the standard version.
The DS series has a digressive piston. At slow body movements, such as roll and dive, it damps firmly. At fast wheel movements over bumps and kerbs, on the other hand, it gives more, so that the tyres keep contact.
The spring rate is 9/5 kg/mm and you set the damping in 30 clicks. You set the ride height independently of the spring preload.
Key benefits
- Complete strut at the rear: True Rear with the spring around the damper.
- Digressive damping: firm at 0 to 50 mm/s, supple on fast impacts.
- 30 clicks: compression and rebound adjustable together per damper.
- Height independent of preload: low without giving up damper stroke.
- Satin chrome damper body: the recognisable DS version.
- Concave lower lock ring: stays reliably in place.
- Spring rate 9/5 kg/mm: matched to the True Rear construction.
- Rebuildable: can be rebuilt later instead of replaced.
Suitable for
Nissan 350Z and Fairlady Z Z33, model years 2003 to 2009
- Track days and drifting
- Sporty road use with the emphasis on chassis control
- Drivers who want the same adjustment options at the rear as at the front
Technical specifications
- Manufacturer: BC Racing
- Part number: D-107-DS-DS
- Series: DS, digressive, track-focused
- Version: True Rear, complete strut at the rear (spring around the damper)
- Spring rate front/rear: 9/5 kg/mm
- Damper design: monotube with digressive piston
- Damping: 30 clicks, compression and rebound simultaneously
- Ride height: adjustable, independent of the spring preload
- Top mounts: rubber top mounts at the front, rubber or original top mounts at the rear (code DS)
- 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. With this track-focused series, noise is not covered by the warranty
Fitting and delivery
The kit replaces the original springs and dampers; at the rear, the separate construction is replaced by a coilover. We recommend having it fitted by an experienced mechanic. Then have the wheel alignment set. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If there is no stock, you can still order and we will keep you informed.
The same coilover at the rear as at the front and a digressive piston all round: that is how a Z33 keeps its composure in every fast corner.
Why choose this DS coilover kit 350Z True Rear?
You get track-focused damping and the freedom to set up the rear precisely, at a price well below the reservoir series. A logical step for anyone who wants more than the BR but does not yet need 2-way adjustment.
BC Racing coilover kits for the Nissan 350Z (Z33) True Rear
Overview of the BC Racing series for the Nissan 350Z (Z33) True Rear 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 | D-107-BR-RS | 9/5 | 30 clicks, linear | Road with the occasional track day |
| DS (this kit) | D-107-DS-DS | 9/5 | 30 clicks, digressive | Track-focused, sporty road use |
| ER | D-107-ER | 12/5 | 2-way, 30 clicks per direction, external reservoir | Serious track and competition use |
| ZX | D-107-ZX | 16/5.5 | 3-way (20/12/30 clicks), external reservoir | Competition, long sessions, drifting |
For the standard version without True Rear, with a separate spring and a separate damper at the rear, BC Racing has separate kits. Their part numbers start with D-17.
Frequently asked questions
What is the difference between the BC Racing DS True Rear and the standard DS for the Nissan 350Z?
The DS coilover kit 350Z True Rear (D-107) has a complete strut at the rear with the spring around the damper and 9/5 kg/mm. The standard version (D-17-DS-DS) keeps a separate spring and separate damper at the rear and has 9/8 kg/mm.
What is the difference between the BC Racing DS and BR for the Nissan 350Z True Rear?
The DS has a digressive piston and is clearly more track-oriented, while the BR has a linear piston and is aimed at road use with the occasional track outing.
Are camber plates included with the BC Racing DS coilover kit 350Z True Rear?
No. The part number ends in DS: this kit has rubber top mounts at the front and rubber or original top mounts at the rear, no camber plates or pillowball top mounts. If you want to be able to adjust the camber via the top mount, contact us.
What is the delivery time of this BC Racing DS coilover kit for the Nissan 350Z True Rear?
The delivery time is normally 1 to 2 weeks. If the manufacturer has temporarily run out of stock, you can still order and we will let you know the expected 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.





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