BC Racing ZX Series - BMW 3/4 Series F80 F82 M3 M4 (2014-2018) (3-Bolt Top Mount)
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BC Racing ZX Series Coilovers – BMW F80 M3 / F82 M4 3-Bolt Top Mount (2018)
The BC Racing ZX Series Coilovers for the BMW F80 M3 and F82 M4 with the 3-bolt front top mount are an advanced, track-focused suspension system designed for drivers looking for maximum damping adjustability, external reservoirs and detailed chassis control.
The ZX Series features 3-way adjustable damping, allowing low-speed compression, high-speed compression and rebound to be tuned independently. Combined with external reservoirs and adjustable ride height, it provides significantly greater setup control than the BR, DS, RM or ER Series.
Why choose BC Racing ZX Series for your F80 M3 or F82 M4?
The F80 M3 and F82 M4 are highly capable performance platforms, and the ZX Series is aimed at owners building a serious fast-road, track or competition-focused car.
Independent control over low-speed compression, high-speed compression and rebound allows the suspension to be developed around tyre choice, spring rates, alignment, vehicle weight and circuit conditions.
This makes the ZX Series particularly well suited to F8X builds where suspension tuning forms an important part of the overall chassis setup.
Key Features
- BC Racing ZX 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
- Increased damper oil capacity
- Improved heat management during sustained use
- Monotube damper design
- Adjustable ride height
- Rebuildable dampers
- Application-specific spring rates
- Custom spring-rate and valving options available
- Adjustable top mounts where applicable
- Designed for serious track and competition use
3-Way Damping Adjustment
The defining feature of the ZX 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.
High-speed compression controls how the suspension responds to faster damper movements caused by bumps, kerbs and sharper surface changes.
Rebound then controls how quickly the suspension extends again after compression.
This gives experienced drivers and suspension specialists a much wider range of setup possibilities than a conventional single- or 2-way adjustable coilover.
External Reservoirs
The ZX Series uses external reservoirs as part of its advanced damper design.
The additional oil capacity helps manage temperatures generated during repeated suspension movement and sustained hard driving.
For F80 M3 and F82 M4 builds that regularly see longer track sessions, this can help maintain more consistent damping behaviour as temperatures rise.
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 ZX Series provides a highly adjustable platform for developing the F8X chassis.
Its 3-way damping control can be configured around other chassis upgrades such as:
- Performance tyres
- Adjustable suspension arms
- Uprated anti-roll bars
- Polyurethane or solid bushes
- Chassis braces
- More aggressive alignment settings
- Aerodynamic modifications
For dedicated track and competition builds, professional alignment and corner weighting can help make full use of the available adjustment.
Adjustable Ride Height
The BC Racing ZX Series allows the ride height of your F80 M3 or F82 M4 to be tailored around both performance and appearance requirements.
For fast-road cars, this allows the vehicle to sit lower with a more purposeful stance.
For track-focused setups, ride height should be considered alongside suspension geometry, available damper travel, alignment and corner weighting rather than simply lowering the vehicle as far as possible.
Choosing Your Spring Rate
Spring-rate selection is particularly important on a highly adjustable suspension system such as the ZX Series.
The ideal setup will depend on:
- Vehicle weight
- Tyre compound and width
- Road or track use
- Alignment
- Anti-roll bars
- Other 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 ZX 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.
ER Series vs ZX Series
The ER Series provides independent compression and rebound adjustment with external reservoirs.
The ZX Series takes adjustability further by separating low-speed compression, high-speed compression and rebound.
For highly developed F80 M3 and F82 M4 track builds, the ZX Series provides greater scope to fine-tune chassis behaviour around specific tyres, circuits and track conditions.
Maintenance & Servicing
The ZX Series is a rebuildable high-performance suspension system designed for demanding use.
The dampers, external reservoirs, hoses, adjusters and mounting hardware should be kept clean and inspected regularly, particularly on vehicles used frequently on track.
Following BC Racing's recommended servicing procedures will help maintain consistent damping performance and maximise the service life of the suspension.
F80 M3 / F82 M4 Compatibility
This BC Racing ZX 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 ZX Series is supplied as a complete coilover suspension kit for the applicable BMW F80 M3 / F82 M4, including the vehicle-specific dampers, springs, external reservoirs and relevant adjustable components.
Exact top-mount, spring-rate and reservoir specifications can vary depending on the selected configuration.
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