BC Racing ZR Series - BMW 3/4 Series F80 F82 M3 M4 (2014-2018) (3-Bolt Top Mount)
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BC Racing ZR Series Coilovers – BMW F80 M3 / F82 M4 3-Bolt Top Mount (2018)
The BC Racing ZR Series Coilovers for the BMW F80 M3 and F82 M4 with the 3-bolt front top mount are a flagship, motorsport-focused suspension system designed for drivers looking for maximum damping adjustability, premium componentry and a highly developed track setup.
The ZR Series features independent low-speed compression, high-speed compression and rebound adjustment, external reservoirs and Swift Springs as standard. This makes it one of the most advanced BC Racing suspension options for serious F8X track and competition builds.
Why choose BC Racing ZR Series for your F80 M3 or F82 M4?
The F80 M3 and F82 M4 are highly capable performance platforms, and the ZR Series is aimed at owners who want significantly more control over damper behaviour than a conventional road or fast-road coilover can provide.
Independent 3-way damping adjustment allows the suspension to be developed around tyre choice, spring rates, alignment, vehicle weight and circuit conditions.
For highly developed track cars where suspension tuning forms an important part of the overall chassis package, the ZR Series provides the level of adjustment required to fine-tune the car in much greater detail.
Key Features
- BC Racing ZR Series coilover suspension
- BMW F80 M3 and F82 M4 application
- 2018 3-bolt front top mount fitment
- 3-way adjustable damping
- Independent low-speed compression adjustment
- Independent high-speed compression adjustment
- Independent rebound adjustment
- External remote reservoirs
- Swift Springs supplied as standard
- Advanced monotube damper design
- Inverted damper configuration where applicable
- Adjustable ride height
- Rebuildable suspension system
- Custom spring-rate options available
- Custom damper valving available
- Adjustable top mounts where applicable
- Designed for serious track and competition use
3-Way Damping Adjustment
The defining feature of the ZR Series is its independent 3-way damping adjustment.
The suspension allows separate adjustment of:
- Low-speed compression
- High-speed compression
- Rebound
Low-speed compression can be used to influence slower chassis movements such as body roll, pitch, braking dive and weight transfer during acceleration and cornering.
High-speed compression controls how the suspension responds to faster damper movements caused by bumps, kerbs and sharper surface changes.
Rebound controls how quickly the suspension extends again after compression.
Being able to adjust all three independently gives experienced drivers and suspension specialists far greater control over the handling balance of the F80 M3 or F82 M4.
External Reservoirs
The ZR Series uses external reservoirs as part of its advanced damper design.
The reservoirs increase the available oil volume within the suspension system and form part of the compression damping arrangement.
The additional oil capacity also helps manage temperatures generated during sustained circuit use, helping maintain more consistent damper behaviour throughout longer track sessions.
Swift Springs as Standard
The ZR Series is supplied with Swift Springs as standard.
For more specialised F80 M3 and F82 M4 builds, spring rates can be selected around vehicle weight, tyre grip, alignment and intended circuit use.
Custom spring rates and corresponding damper valving can also be considered where a more developed suspension setup is required.
Important 3-Bolt Top Mount Fitment
This kit is intended specifically for F80 M3 and F82 M4 models using the 3-bolt front top mount configuration.
BMW used different front top-mount arrangements across F8X applications, so the mounting pattern should be confirmed before ordering.
A 3-bolt application should not be assumed to be interchangeable with a different top-mount configuration.
If you're unsure which version your vehicle uses, check the front strut top mount or contact us before ordering and we can help identify the correct kit.
BMW F80 M3 / F82 M4 Track Suspension
The ZR Series provides a highly adjustable platform for developing the F8X chassis.
It can be configured to work alongside upgrades such as:
- Performance tyres
- Adjustable suspension arms
- Uprated anti-roll bars
- Polyurethane or solid bushes
- Chassis braces
- Aggressive alignment settings
- Aerodynamic modifications
For dedicated track and competition cars, professional alignment and corner weighting are strongly recommended to make full use of the available suspension adjustment.
Adjustable Ride Height
The BC Racing ZR Series allows the ride height of your F80 M3 or F82 M4 to be tailored around the intended use of the car.
For serious track builds, ride height should be considered alongside suspension geometry, available damper travel, alignment and corner weighting.
Simply lowering the vehicle as far as possible can compromise suspension travel and geometry, so a performance-focused setup should prioritise chassis behaviour over stance alone.
Choosing Your Spring Rate
Spring-rate selection is especially important with an advanced suspension system such as the ZR Series.
The ideal specification will depend on:
- Vehicle weight
- Tyre compound and width
- Road or track use
- Alignment
- Anti-roll bars
- Chassis modifications
- Aerodynamic load
- Circuit characteristics
- Driver preference
For serious track builds, spring rates and damper valving should ideally be considered together rather than selected independently.
If you're unsure which ZR Series specification is best suited to your F80 M3 or F82 M4, contact us before ordering and we can help you choose an appropriate setup.
ZX Series vs ZR Series
Both the ZX and ZR Series provide advanced 3-way damping adjustment with separate low-speed compression, high-speed compression and rebound control.
The ZR Series sits at the more premium, motorsport-focused end of the BC Racing range, with Swift Springs supplied as standard and a specification aimed at highly developed track and competition builds.
For serious F80 M3 and F82 M4 projects where suspension setup is being developed around tyres, spring rates, aero and circuit conditions, the ZR Series is the more specialised option.
Maintenance & Servicing
The ZR Series is a rebuildable motorsport-focused suspension system and should be maintained accordingly.
The dampers, external reservoirs, hoses, adjusters and mounting hardware should be kept clean and inspected regularly, particularly on cars seeing frequent circuit use.
Cars used heavily on track or in competition should be serviced at appropriate intervals to help maintain consistent damping performance and maximise component life.
F80 M3 / F82 M4 Compatibility
This BC Racing ZR Series kit is intended for applicable 2018 BMW F80 M3 and F82 M4 models using the 3-bolt front top mount.
Please confirm your exact vehicle and top-mount configuration before ordering, particularly if the car has previously had suspension components changed.
If you're unsure whether this is the correct kit, contact us and we'll help you identify the appropriate application.
What's Included?
The BC Racing ZR Series is supplied as a complete coilover suspension kit for the applicable BMW F80 M3 / F82 M4, including the vehicle-specific dampers, Swift Springs, external reservoirs and relevant adjustable components.
Exact top-mount, spring-rate, reservoir and damper specifications can vary depending on the selected configuration.
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