BC Racing ZR Series - BMW 3/4 Series F80 F82 M3 M4 (2014-2018) (5-Bolt Top Mount)
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BC Racing ZR Series Coilovers – BMW F80 M3 / F82 M4 5-Bolt Top Mount
The BC Racing ZR Series Coilovers for the BMW F80 M3 and F82 M4 with the 5-bolt front top mount are a flagship motorsport-focused suspension system designed for drivers looking for maximum damping adjustability, external reservoirs and premium spring hardware.
The ZR Series features independent low-speed compression, high-speed compression and rebound adjustment, combined with external reservoirs and Swift Springs as standard. This makes it one of the most advanced BC Racing suspension options available 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 the highest level of suspension tuning within the BC Racing range.
Its independent 3-way damping adjustment allows the suspension to be developed around tyre choice, spring rates, alignment, vehicle weight, aerodynamic load and circuit conditions.
For heavily modified road cars, dedicated track-day builds and competition applications, the ZR Series provides a much greater level of setup control than conventional single- or 2-way adjustable coilovers.
Key Features
- BC Racing ZR Series coilover suspension
- BMW F80 M3 and F82 M4 application
- 5-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 configuration where applicable
- Adjustable ride height
- Rebuildable suspension system
- Custom spring-rate options available
- Custom damper valving available
- 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 influences slower chassis movements such as body roll, pitch, braking dive and weight transfer.
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.
This allows experienced drivers and suspension specialists to fine-tune the F80 M3 or F82 M4 around specific tyres, circuits and driving conditions.
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 damping package.
The additional oil capacity also helps manage temperatures generated during repeated suspension movement and sustained circuit use, helping maintain more consistent damper behaviour during longer sessions.
Swift Springs as Standard
The ZR Series is supplied with Swift Springs as standard.
Swift Springs are widely used in high-performance and motorsport applications and provide a premium spring solution for owners developing a more serious suspension setup.
Spring rates can be selected around:
- Vehicle weight
- Tyre compound and width
- Road or track use
- Alignment
- Anti-roll bars
- Chassis modifications
- Aerodynamic load
- Circuit characteristics
- Driver preference
For more specialised builds, spring rates and damper valving can be considered together as part of the complete chassis setup.
Important 5-Bolt Top Mount Fitment
This kit is intended specifically for F80 M3 and F82 M4 models using the 5-bolt front top mount configuration.
BMW used different front top-mount arrangements across F8X applications, so the mounting pattern should always be confirmed before ordering.
A 5-bolt application should not be assumed to be interchangeable with the 3-bolt version.
If you're unsure which configuration 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 around serious performance use.
Its 3-way damping control can be configured alongside upgrades such as:
- Performance or motorsport 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 can help 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 fast-road builds, this allows the stance and arch gap to be adjusted while improving chassis response.
For track-focused setups, ride height should be considered alongside suspension geometry, damper travel, alignment and corner weighting rather than simply lowering the vehicle as far as possible.
Choosing Your Spring Rate
Spring-rate selection plays an important role in getting the most from the ZR Series.
The ideal setup 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 as part of the complete suspension setup.
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 the right setup.
ZX Series vs ZR Series
Both the ZX and ZR Series provide independent low-speed compression, high-speed compression and rebound adjustment with external reservoirs.
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 cars.
For serious F80 M3 and F82 M4 builds 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 track use.
Where inverted damper configurations are used, the moving and mating surfaces should also be kept clean and checked periodically.
Cars used heavily on track or in competition should be serviced at suitable 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 BMW F80 M3 and F82 M4 models using the 5-bolt front top mount.
Please confirm your exact vehicle and top-mount configuration before ordering, particularly if the suspension has previously been modified.
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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