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NITRON NTR-R3 COILOVER KIT FOR 997 PORSCHE 911 CARRERA 4, CARRERA 4 GTS, CARRERA 4S, TURBO, AND TURBO S [NTCPO026R3]

Name: NITRON NTR-R3 COILOVER KIT FOR 997 PORSCHE 911 CARRERA 4, CARRERA 4 GTS, CARRERA 4S, TURBO, AND TURBO S [NTCPO026R3]
SKU: NTCPO026R3
Price: 7585.00 USD
Availability: InStock

SKU: NTCPO026R3

Nitron Suspension

$7,585.00

In Stock

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OEM-quality fitment for precise installation.

Sourced from certified, top-tier automotive brands.

Nitron NTR-R3 Coilover Kit for 997 Porsche 911 Carrera 4, Carrera 4 GTS, Carrera 4S, Turbo, and Turbo S

The 997 Porsche 911 Carrera 4, Carrera 4 GTS, Carrera 4S, Turbo, and Turbo S are capable platforms from the factory, but the suspension still leaves real capability on the table when the driving gets serious. The Nitron NTR-R3 coilover kit is built for that level of development work; independent 3-way damping adjustment with separate high and low speed compression control gives drivers and engineers the range needed to properly dial the car in across different circuits and conditions. A large diameter piston and ultra-strong piston rod sit at the core of the design, providing the damping control and feedback that serious setups depend on. Both front and rear units use hose mounted reservoirs; the fronts feature quick-release dry-breaks as standard, with the option to add them to the rears as well, keeping high and low speed compression adjustment accessible at both ends without adding complexity to the installation. The R3 is a proven race winner with lap records across a wide range of international motorsport formulas, and every kit is custom built, custom sprung, and fully serviceable.

Specialized Bi-Axis Hose Fittings

Nitron R3 hose shocks use Nitron’s own 720-degree Bi-Axis fittings exclusively; a proprietary design that makes for clean, precise installation without the compromises that come with conventional end fittings.

Unique Technology

Nitron builds every shock from precision components that go through a thorough design and development process long before final assembly. The modular construction gives engineers the flexibility to approach each application on its own terms without cutting corners on part quality or how components perform together under load. Everything is machined to tight tolerances and inspected individually by trained technicians; that quality control runs through every stage of production rather than being concentrated at the end. New materials, finishes, and processes are validated extensively before adoption, with proprietary Nitron technologies integrated throughout to produce shocks that consistently hold up against the competition on road and track. That engineering standard is what the brand has been built on since 1998.
- 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 doesn’t adapt a generic damper to fit the 997 Porsche 911 Carrera 4, Carrera 4 GTS, Carrera 4S, Turbo, and Turbo S; they engineer one around each platform. Every application goes through a dedicated development process where components, spring rates, and damping characteristics are determined by the specific variant, not borrowed from something close enough. The geometry, weight distribution, and suspension travel of each model are part of the design from the beginning, not corrections introduced later. That’s the difference between suspension that works with a car and suspension that was developed for it.

Features

Hose reservoir type
Dry-breaks for front reservoirs, optional for the rear
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

Applications

Porsche 911 Carrera 4: 997.1, 997.2 | 2005-2013
Porsche 911 Carrera 4 GTS: 997.1, 997.2 | 2011-2013
Porsche 911 Carrera 4S: 997.1, 997.2 | 2005-2013
Porsche 911 Turbo: 997.1, 997.2 | 2006-2008, 2010-2013
Porsche 911 Turbo S: 997.2 | 2010-2013

Other Suspension Kits for 997 C4 / C4 GTS / C4S / Turbo / Turbo S

Notes

If your 911 was equipped with PASM the Nitron Electronic Damping Delete Kit can prevent the error codes and warning lights associated with switching to a non-electronic suspension system
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 is the difference between the NTR-R1 and the NTR-R3? The NTR-R1 uses combined 2-way adjustment with 24 clicks controlling both compression and rebound through a single circuit. The NTR-R3 separates those functions entirely, with 16 clicks of high speed compression, 26 clicks of low speed compression, and 24 clicks of rebound adjusted independently. The R3 gives drivers and engineers significantly more range to work with when dialing the car in across different circuits and conditions.
Does the Nitron NTR-R3 require the Electronic Damping Delete Kit on a PASM-equipped 997 Carrera 4, Carrera 4 GTS, Carrera 4S, Turbo, or Turbo S? Yes, if your car was factory-equipped with PASM. Fitting a passive coilover kit to a PASM-equipped 997 without addressing the factory electronic damping system will trigger fault codes and warning lights. The Nitron Electronic Damping Delete Kit prevents those faults cleanly and is required alongside the NTR-R3 on any PASM-equipped car.
Can the Nitron NTR-R3 be revalved or adjusted after purchase, and are custom spring rates available? Yes on both. Every Nitron NTR-R3 kit is fully serviceable and can be revalved or rebuilt by Nitron. Custom spring rates are available at the time of order; contact us directly before ordering if your intended use or setup calls for something outside the standard specification.

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.

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We want you to feel confident before making your purchase. Here are a few important details to help you better understand this product and how it fits into your space.

Please review the product dimensions carefully to ensure the right fit for your space
Color may vary slightly due to lighting and screen settings
Materials and finishes are selected for both durability and visual appeal
Some items may require simple assembly upon delivery
Perfect for both everyday use and long-term comfort

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Product Size Guide

Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.

Category	Small	Medium	Large
Decor & Accessories	Up to 10″	10″ – 20″	20″+
Tables	Up to 30″	30″ – 60″	60″+
Seating	1 Seater	2–3 Seater	4+ Seater
Storage Units	Compact	Standard	Large Capacity
Lighting	Small Fixture	Standard Fixture	Large Fixture

Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.

NITRON NTR-R3 COILOVER KIT FOR 997 PORSCHE 911 CARRERA 4, CARRERA 4 GTS, CARRERA 4S, TURBO, AND TURBO S [NTCPO026R3]

$7,585.00 Add to Cart

NITRON NTR-R3 COILOVER KIT FOR 997 PORSCHE 911 CARRERA 4, CARRERA 4 GTS, CARRERA 4S, TURBO, AND TURBO S [NTCPO026R3]