Does lowering the M4 significantly enough to need front axle lift compromise the suspension geometry?

Not with this setup. The NTR-R1 is custom sprung to order, so the spring rates are developed around the specific ride height rather than adapted from a stock-height baseline. The FAL system operates independently of the coilover setup, raising the front axle for clearance and returning the car to its configured ride height without touching spring rates, damping settings, or alignment.

Does the Standalone FAL work at any speed or only at low speeds?

The FAL is designed for low-speed obstacle clearance; driveways, parking lots, speed bumps, and similar situations. It's not intended for use at speed on the road or circuit, and the auto off function is part of how the system manages that. Once the front axle returns to ride height, the suspension operates exactly as configured with no effect on handling.

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Description

Nitron NTR-R1 Coilover Kit with Standalone FAL for F82 BMW M4 / M4 Competition

The F82 BMW M4 and M4 Competition sit on a platform with genuine motorsport capability, and the Nitron NTR-R1 Coilover Kit with Standalone FAL is built for drivers who want to get the most out of it without the daily compromises that come with a lowered car. Precision-engineered, combined 2-way damping adjustment drawn directly from the R3 race platform shares core components with a kit built for professional competition. Coilover and divorced rear suspension configurations are both available to suit different build requirements, and the kit includes droplinks so the installation is complete without sourcing additional hardware. The included Standalone FAL addresses one of the more practical challenges of running a lowered M4 on the road, raising the front axle by 25mm to clear driveways, speed bumps, and parking obstacles without affecting the suspension setup or the driving experience once conditions return to normal. There’s no remote canister to package around, and every unit is individually hand-built with ultra-low friction components that deliver consistent, fade-resistant damping from the street to the circuit. Hard-anodized titanium finish parts and high-grade materials keep corrosion out and weight in check, and with each kit custom built, custom sprung, and fully serviceable, it’s an investment that holds up well beyond a single season.

The Nitron Front Axle Lift (FAL)

Running a lowered F82 M4 or M4 Competition on the road comes with a familiar set of frustrations; steep driveways, speed bumps, and parking lot ramps that sit just low enough to make every approach a calculation. The Nitron Standalone Front Axle Lift system is built around that specific problem. With 25mm of lift available at the front axle, it clears the obstacles that lowered ride heights make problematic without requiring any changes to the suspension setup and without affecting how the car performs once you’re back on the road or circuit. It’s a practical addition to a performance suspension package, not a compromise of one.
- 250W pump
- 25mm lift height
- Typical lift time under 3-seconds
- Audible in-cabin warning system
- Switch with built-in warning light
- Auto off function
- Protects your car from damage caused by steep driveways and speed bumps
- Compatible with a wide range of suspension setups

Coilover vs Divorced Rear Suspension

The F82 M4 and M4 Competition NTR-R1 with Standalone FAL is available with two rear suspension configurations depending on how the car is being built. The coilover setup combines the spring and damper into a single unit, keeping things compact and straightforward for road and general track use. The divorced configuration separates the spring and damper, allowing each to be positioned and tuned independently; this is the preferred approach for dedicated race builds where maximizing suspension geometry and setup flexibility matters more than packaging simplicity. Nitron offers both to make sure the R1 works with the build rather than against it.

Unique Technology

Every Nitron shock starts with precision components that have been through a thorough design and development process before they reach final assembly. The modular construction gives engineers the flexibility to tailor each application properly, without compromising how individual parts are made or how they perform together. Components are machined to tight tolerances and inspected one by one by trained technicians as part of a strict quality control process. New materials, finishes, and processes go through extensive validation before adoption, with Nitron-specific technologies integrated to produce shocks that genuinely outlast and outperform competing options on the road and track. That standard of engineering is what Nitron’s reputation is built on.
- 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 pull a generic damper off a shelf and adjust the valving to fit the F82 M4 and M4 Competition. Every application goes through a dedicated development process, with components, spring rates, and damping characteristics engineered specifically for the platform in question. The geometry, weight distribution, and suspension travel of the M4 are factored into the design from the start, not compensated for after the fact. It’s the difference between a kit built for the F82 and a kit built for a category of cars it happens to fall into.

Features

Coilover and divorced rear suspension variations
Internal reservoir type
2-way combined adjustment
Full alloy body
Preload adjuster
Combined 24 clicks of adjustment
Nitrogen gas charged
Nitron FAL raises 25mm at the shock
Precision bearing spacers supplied as required
Consists of 4 coilovers, adjustable top mounts, and droplinks (+FAL kit)
FAL kit contains all components (cylinders, hydraulic lines, pump, wiring loom and controller)
Hand made to order

Specifications

Coilover Type: NTR-R1 with standalone FAL (front axle lift)
Adjustment Type: 2-way combined
Adjustment: 24 clicks combined
Rear Suspension Type:
- Coilover
- Divorced
Droplinks Included: Yes
Recommended Spring Rates:
- FRS – Fast Road Spec:
  - Front: 685lbs/inch (120N/mm)
  - Rear:
    - Coilover: 400lbs/inch (70N/mm)
    - Divorced: 742lbs/inch (130N/mm)
- TDS – Track Day Spec:
  - Front: 799lbs/inch (140N/mm)
  - Rear:
    - Coilover: 514lbs/inch (90N/mm)
    - Divorced: 914lbs/inch (160N/mm)

Applications

BMW M4: F82 | 2014-2020
BMW M4 Competition: F82 | 2017-2020

Other Suspension Kits for F82 M4 / M4 Competition

Notes

Not compatible with F83 Convertible models, Coupe only
Most M4 models came standard with BMW Adaptive M Suspension, and all M4 Competition variants were equipped with it from the factory. If your M4 is equipped with Adaptive M Suspension, the Nitron Electronic Damping Delete Kit is required when fitting this coilover kit to prevent fault codes and warning lights.
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.
Precision bearing spacers supplied as required

Frequently Asked Questions

Does lowering the M4 significantly enough to need front axle lift compromise the suspension geometry? Not with this setup. The NTR-R1 is custom sprung to order, so the spring rates are developed around the specific ride height rather than adapted from a stock-height baseline. The FAL system operates independently of the coilover setup, raising the front axle for clearance and returning the car to its configured ride height without touching spring rates, damping settings, or alignment.
Does the Standalone FAL work at any speed or only at low speeds? The FAL is designed for low-speed obstacle clearance; driveways, parking lots, speed bumps, and similar situations. It’s not intended for use at speed on the road or circuit, and the auto off function is part of how the system manages that. Once the front axle returns to ride height, the suspension operates exactly as configured with no effect on handling.

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-R1 Coilover Kit with Standalone FAL for F82 BMW M4 / M4 Competition [NTCBM022R1+FAL]

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Nitron NTR-R1 Coilover Kit with Standalone FAL for F82 BMW M4 / M4 Competition

The Nitron Front Axle Lift (FAL)

Coilover vs Divorced Rear Suspension

Unique Technology

Bespoke Engineering

Features

Specifications

Applications

Other Suspension Kits for F82 M4 / M4 Competition

Notes

Frequently Asked Questions

About Nitron Suspension

Reviews