What kind of adjustment does Nitron's R33 GTS-25t NTR-R3 coilover kit offer?

Independent high and low speed compression and rebound adjustment at each corner, giving a wider tuning range than the single combined adjuster on the NTR-R1.

What kind of reservoir does this coilover kit use?

Hose-mounted reservoirs front and rear rather than an internal reservoir.

Does this kit include adjustable top mounts?

Yes. Every kit ships with adjustable top mounts for precise ride height and camber correction, along with race springs.

How does the R3 compare to the R1 in general?

The R3 adds independent high and low speed adjustment for compression and rebound, while the R1 uses a single combined adjuster, so the R3 gives a finer tuning range for track use.

Is this kit different from a NTR-R3 kit for the same chassis?

Yes. The GTS-25t is RWD without the GT-R's ATTESA E-TS transfer case and front differential, so the front weight distribution and mounting points differ enough that Nitron builds each kit around its own platform.

Can custom spring rates be ordered?

Yes. Every kit is custom built to order, and custom spring rates beyond the standard setup are available by contacting us directly.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

Nitron NTR-R3 Coilover Kit for R33 Nissan Skyline GTS-25t (facelift)

The Nitron R33 GTS-25t NTR-R3 coilover kit is built for owners who’ve already sorted the basics and want the kind of independent adjustment that lets a suspension actually be tuned rather than just set once and left alone. This facelift GTS-25t runs the RB25DET single-turbo six without the GT-R’s ATTESA E-TS transfer case and front differential, so the front end carries less weight and reacts differently under braking than the AWD car most R33 suspension guides are written around. Nitron’s NTR-R3 coilover kit gives independent high and low speed compression and rebound adjustment at each corner, letting an owner separate how the suspension handles small, fast inputs like pavement texture from how it handles bigger, slower movements like body roll under load, something a combined single-dial adjuster can’t do. Hose-mounted reservoirs front and rear keep oil volume and temperature more consistent than an internal reservoir alone during a long track session or a hard back road run. Every kit includes adjustable top mounts and race springs, and it’s custom built and fully serviceable.

Specialized Bi-Axis Hose Fittings

Nitron builds every R3 Hose shock around its own 720-degree Bi-Axis fitting, and it’s the only fitting used across that line, not a manufacturer’s off-the-shelf spherical rod end pressed into service. Conventional end fittings bind up at extreme steering or suspension angles, which is exactly where a lowered, stiffened R33 starts fighting its own hose routing through a tight engine bay. The Bi-Axis design rotates freely at both connection points, so the hose finds its own line under compression and rebound instead of kinking or twisting against a fixed fitting.

Unique Technology

Nitron builds every shock in the NTR-R3 kit from precision components that go through a rigorous design and development process before final assembly. Modular construction gives Nitron’s engineers the flexibility to work through this platform properly instead of cutting corners on how parts are made or how they perform together under real load. Everything is machined to tight tolerances and checked individually by trained technicians, and that quality control runs through the whole process rather than sitting at the end of it.
- Basic Damper Design:
  1. End Eye / Top Mount
  2. Damper Piston & Shim Stack
  3. Shaft / Rod
  4. Floating / Separator Piston
  5. Suspension Oil
  6. Compressed Nitrogen Gas

Bespoke Engineering

Nitron didn’t start with a generic damper and reverse engineer a fit for the R33 GTS-25t. This kit was developed from scratch around the RWD platform’s double wishbone front and multi-link rear, not the GT-R’s AWD-specific mounting points and subframe reinforcement. Geometry, weight distribution, and suspension travel were factored into this R33 GTS-25t NTR-R3 coilover’s design from the beginning, not addressed as an afterthought.

Features

Hose reservoir types
OEM rear suspension type
16 clicks of high compression
26 clicks of low compression
24 clicks of rebound
Preload adjuster
3-way independent adjustment
Full alloy body
Consists of 4 coilovers, reservoirs, hoses, and top mounts
Hand made to order

Specifications

Coilover Type: NTR-R3
Adjustment Type: 3-way independent
Adjustment: 16 clicks of high compression / 26 clicks of low compression / 24 clicks of rebound
Reservoir Type: Hose
Rear Suspension Type: OEM
Droplinks Included: No
Recommended Spring Rates:
- FRS – Fast Road Spec:
  - Front: 600lbs/inch (105N/mm)
  - Rear: 400lbs/inch (70N/mm)
- TDS – Track Day Spec:
  - Front: 800lbs/inch (140N/mm)
  - Rear: 600lbs/inch (105N/mm)

Applications

Nissan Skyline GTS-25t: R33 | 1996-1998

Other Suspension Kits for R33 GTS-25t

Notes

This coilover kit only fits 1996-1998 R33 GTS-25t facelift models
Custom spring rates also available, please contact us directly here for more information or for a consultation on custom rates
Images used for illustration purposes only; specific details, finishes and end fittings may differ from that shown

Frequently Asked Questions

What kind of adjustment does Nitron’s R33 GTS-25t NTR-R3 coilover kit offer? Independent high and low speed compression and rebound adjustment at each corner, giving a wider tuning range than the single combined adjuster on the NTR-R1.
What kind of reservoir does this coilover kit use? Hose-mounted reservoirs front and rear rather than an internal reservoir.
Does this kit include adjustable top mounts? Yes. Every kit ships with adjustable top mounts for precise ride height and camber correction, along with race springs.
How does the R3 compare to the R1 in general? The R3 adds independent high and low speed adjustment for compression and rebound, while the R1 uses a single combined adjuster, so the R3 gives a finer tuning range for track use.
Is this kit different from a NTR-R3 kit for the same chassis? Yes. The GTS-25t is RWD without the GT-R’s ATTESA E-TS transfer case and front differential, so the front weight distribution and mounting points differ enough that Nitron builds each kit around its own platform.
Can custom spring rates be ordered? Yes. Every kit is custom built to order, and custom spring rates beyond the standard setup are available by contacting us directly.

About Nitron Suspension

Nitron Suspension has been at the forefront of precision suspension engineering since 1998, founded by Guy Evans with the goal of building high-performance shocks for enthusiasts and professionals alike. Over 200 dealers now carry Nitron products across Europe, Asia, the US, Australasia, and Africa. In 2008, the company moved into a dedicated facility in the UK’s Motorsport Valley, adding dynamometers, 5-axis CNC machines, and 3D CAD capabilities to support both growing demand and continued product development. A second expansion came in 2023 with a new office in Murrieta, California. The team behind every Nitron product draws from deep backgrounds in machining, materials technology, hydraulics, bike engineering, and F1 racing, with many engineers bringing firsthand experience as competitive drivers and riders. That depth of knowledge across both the technical and competitive sides of motorsport shapes every product Nitron develops.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Nitron NTR-R3 Coilover Kit for R33 Nissan Skyline GTS-25t (facelift) [NTCNI017R3]

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Nitron NTR-R3 Coilover Kit for R33 Nissan Skyline GTS-25t (facelift)

Specialized Bi-Axis Hose Fittings

Unique Technology

Bespoke Engineering

Features

Specifications

Applications

Other Suspension Kits for R33 GTS-25t

Notes

Frequently Asked Questions

About Nitron Suspension

Reviews