BC Racing ER Series - BMW 3/4 Series F80 F82 M3 M4 (2014-2018) (3-Bolt Top Mount)

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 ER Series Coilovers – BMW F80 M3 / F82 M4 3-Bolt Top Mount (2018)

The BC Racing ER Series Coilovers for the BMW F80 M3 and F82 M4 with the 3-bolt front top mount are an advanced performance suspension upgrade designed for drivers looking for independent damping control, external reservoirs and greater consistency during demanding fast-road and track use.

The ER Series features 2-way adjustable damping, allowing compression and rebound to be tuned independently. Combined with external reservoirs, a monotube damper design and adjustable ride height, it provides significantly greater setup flexibility than the BR, DS or RM Series.

Why choose BC Racing ER Series for your F80 M3 or F82 M4?

The F80 M3 and F82 M4 are highly capable performance platforms, and the ER Series is aimed at owners who want more detailed suspension control than a conventional single-adjustable coilover can provide.

Independent compression and rebound adjustment allows the suspension to be developed around tyre choice, spring rates, alignment, vehicle weight and driving style.

The external reservoir design also makes the ER Series particularly suitable for cars that regularly see demanding road or circuit use where consistent damper performance is important.

Key Features

• BC Racing ER Series coilover suspension
• BMW F80 M3 and F82 M4 application
• 2018 3-bolt front top mount fitment
• 2-way adjustable damping
• Independent 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 damper design
• Application-specific spring rates
• Custom spring-rate options available
• Adjustable top mounts where applicable
• Designed for serious fast-road and track use

Independent Compression & Rebound Adjustment

The defining feature of the ER Series is its independent 2-way damping adjustment.

Compression adjustment controls how the damper responds as the suspension compresses, while rebound controls how the suspension extends again afterwards.

Being able to adjust these separately gives experienced drivers and suspension specialists greater control over how the F80 M3 or F82 M4 behaves under braking, acceleration, cornering and changing road or track conditions.

External Reservoirs

The ER Series uses external reservoirs as part of its advanced damper design.

These increase the available oil capacity within the suspension system, helping manage the heat generated by repeated damper movement during sustained hard driving.

For F8X cars that regularly see longer track sessions, this can help maintain more consistent damping characteristics 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 ER Series gives F80 M3 and F82 M4 owners a highly adjustable platform for developing the car's handling performance.

Independent compression and rebound control allows the suspension to be configured around other chassis upgrades such as:

• Performance tyres
• Adjustable suspension arms
• Uprated anti-roll bars
• Polyurethane or solid bushes
• Chassis braces
• Performance alignment settings

For track-focused builds, professional alignment and corner weighting can help maximise the benefits of the additional suspension adjustment.

Adjustable Ride Height

The BC Racing ER Series allows the ride height of your F80 M3 or F82 M4 to be tailored around both appearance and performance requirements.

For road and 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 car as far as possible.

Choosing Your Spring Rate

The ER Series is available with application-specific spring rates, with alternative and custom spring-rate configurations available depending on your requirements.

The ideal setup will depend on:

• Vehicle weight
• Tyre type and grip level
• Road or track use
• Alignment
• Anti-roll bars
• Other suspension modifications
• Driver preference

For serious track builds, spring rates and damper settings should ideally be considered together as part of the complete chassis setup.

If you're unsure which ER 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.

RM Series vs ER Series

The RM Series uses an inverted damper design to increase rigidity and reduce unsprung mass.

The ER Series focuses on greater damping adjustability, adding independent compression and rebound control with external reservoirs.

For drivers prioritising detailed suspension tuning and sustained track performance, the ER Series is the more advanced option.

Maintenance & Servicing

The ER Series is a rebuildable high-performance suspension system and should be maintained accordingly.

The dampers, 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 ER 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 ER 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.

Explore More BMW F80 M3 / F82 M4 Parts

Looking to improve your F80 M3 or F82 M4 further? Explore our range of BMW M3 and M4 parts and upgrades, including suspension, handling, performance and styling products.

BMW F80 M3 Parts – Shop parts and upgrades for the BMW F80 M3.

BMW F82 M4 Parts – Shop parts and upgrades for the BMW F82 M4.

BC Racing Coilovers – Explore the full range of BC Racing coilover suspension kits.

BC Racing ER Series – Browse ER Series applications across the BC Racing range.

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