BC Racing ZX Series - BMW 3/4 Series F80 F82 M3 M4 (2014-2018) (5-Bolt Top Mount)
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PLEASE NOTE THE IMAGE IS FOR ILLUSTRATION PURPOSES ONLY IF YOU REQUIRE SPECIFIC NEEDS SUCH AS TOP MOUNTS THEN PLEASE CONTACT US TO CONFIRM BEFORE ORDERING
BC Racing ZX Series Coilovers – BMW F80 M3 / F82 M4 5-Bolt Top Mount
The BC Racing ZX Series Coilovers for the BMW F80 M3 and F82 M4 with the 5-bolt front top mount are an advanced 3-way adjustable suspension system designed for serious fast-road, track and competition-focused use.
The ZX Series allows low-speed compression, high-speed compression and rebound to be adjusted independently, giving experienced drivers and suspension specialists much greater control over chassis behaviour than conventional single- or 2-way adjustable coilovers.
Combined with external reservoirs, adjustable ride height and a monotube damper design, the ZX Series provides a highly developed platform for F8X owners looking to fine-tune suspension performance around tyres, alignment and circuit conditions.
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 who want a more advanced level of suspension control.
Its independent 3-way damping adjustment allows the car to be tuned around braking behaviour, cornering balance, kerb response, tyre grip and changing track conditions.
For heavily developed fast-road cars, track-day builds and competition-focused applications, the ZX Series provides significantly greater setup flexibility than the BR, DS or ER Series.
Key Features
- BC Racing ZX 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
- Increased damper oil capacity
- Improved heat management during sustained use
- Monotube damper design
- Adjustable ride height
- Rebuildable suspension system
- Application-specific spring rates
- 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 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 influences slower chassis movements such as body roll, pitch, braking dive and weight transfer.
High-speed compression controls the damper response to faster suspension movements caused by bumps, kerbs and sharper surface changes.
Rebound controls how quickly the suspension extends again after compression.
This gives the ZX Series a much wider tuning range than conventional single-adjustable coilovers and allows the suspension to be developed around the specific requirements of the car and driver.
External Reservoirs
The ZX Series uses external reservoirs as part of its advanced damper design.
The additional oil capacity helps manage heat generated during repeated damper movement and sustained circuit use.
For F80 M3 and F82 M4 builds that regularly see longer track sessions, this can help maintain more consistent damping behaviour as suspension temperatures increase.
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 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 ZX 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 ZX Series allows the ride height of your F80 M3 or F82 M4 to be adjusted to suit the intended use of the vehicle.
For fast-road builds, this allows the stance and arch gap to be tailored 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
The ZX Series is available with application-specific spring rates, with custom spring-rate and valving options available for more specialised builds.
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 cars, spring rates and damper valving should ideally be considered together as part of the complete chassis 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 the right configuration.
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 compression damping into low-speed and high-speed adjustment, alongside independent rebound control.
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 driving conditions.
Maintenance & Servicing
The ZX Series is a rebuildable high-performance 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 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 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 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, reservoir and damper specifications can vary depending on the selected configuration.
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