BC Racing BR Series - BMW 3/4 Series F80 F82 M3 M4 (2014-2018) (5-Bolt Top Mount) (True Rear Coilover)

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 BR Series True Rear Coilovers – BMW F80 M3 / F82 M4 5-Bolt Top Mount

The BC Racing BR Series True Rear Coilovers for the BMW F80 M3 and F82 M4 with the 5-bolt front top mount are a versatile performance suspension upgrade designed for drivers looking for adjustable ride height, 30-way damping adjustment and a true rear coilover conversion.

The BR Series combines BC Racing’s monotube damper design with a wide range of adjustment, making it a strong choice for road, fast-road and occasional track use.

With the True Rear configuration, the factory-style divorced rear spring and damper layout is replaced by a complete rear coilover assembly, giving the F8X chassis a more motorsport-style suspension arrangement.

Why choose BC Racing BR Series True Rear for your F80 M3 or F82 M4?

The F80 M3 and F82 M4 are already highly capable performance cars, and the BR Series provides a strong balance between adjustability, performance and everyday usability.

For road and fast-road use, the kit offers improved chassis control, adjustable ride height and the ability to tailor damping to suit different driving conditions.

For occasional track use, the True Rear setup provides a more specialised rear suspension layout that can be developed around spring rates, alignment, tyres and overall chassis balance.

Key Features

• BC Racing BR Series True Rear coilover suspension
• BMW F80 M3 and F82 M4 application
• 5-bolt front top mount fitment
• True rear coilover conversion
• Rear spring mounted around the damper
• Replaces the factory-style divorced rear spring arrangement
• 30-way damping adjustment
• Monotube damper design
• Adjustable ride height
• Rebuildable damper design
• Application-specific spring rates
• Custom spring-rate options available
• Adjustable top mounts where applicable
• Suitable for road, fast-road and occasional track use

True Rear Coilover Conversion

The main difference between this kit and a conventional F80 M3 / F82 M4 BR Series setup is the rear suspension configuration.

The factory rear suspension uses a divorced layout, with the spring mounted separately from the damper.

With the True Rear configuration, the rear spring is mounted concentrically around the damper to create a complete rear coilover assembly.

This provides a more conventional motorsport-style rear suspension layout and can make spring changes and setup development more straightforward on track-focused cars.

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.

30-Way Damping Adjustment

The BR Series provides 30 levels of damping adjustment, allowing the suspension response to be tailored to different driving conditions and preferences.

Softer settings can provide greater compliance for road use, while firmer settings can increase chassis control during spirited driving and track use.

This adjustment also gives owners more flexibility as tyres, alignment and other suspension components are changed.

Adjustable Ride Height

The BC Racing BR Series allows the ride height of your F80 M3 or F82 M4 to be adjusted to suit both appearance and performance requirements.

For road-driven cars, this makes it possible to reduce arch gap and achieve a more purposeful stance.

For track-focused setups, ride height should be considered alongside suspension geometry, available travel, alignment and corner weighting rather than simply lowering the vehicle as far as possible.

BMW F80 M3 / F82 M4 Suspension Upgrade

The BR Series True Rear provides a flexible platform for improving the handling of the F8X chassis.

The suspension can be developed alongside upgrades such as:

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

For predominantly road-driven cars, the BR Series remains one of the most versatile options in the BC Racing range.

For fast-road and occasional track use, the True Rear layout gives additional scope to develop the rear suspension around the intended use of the car.

Choosing Your Spring Rate

Spring-rate selection is particularly important with a True Rear F8X setup.

Because the rear spring acts at a different point in the suspension compared with the factory divorced arrangement, conventional rear spring rates should not be directly transferred to a True Rear configuration.

The correct rear spring rate should instead be selected specifically for the True Rear layout.

Factors to consider include:

• Vehicle weight
• Tyre compound and width
• Road or track use
• Alignment
• Anti-roll bars
• Chassis modifications
• Driver preference

If you're unsure which spring-rate configuration is appropriate for your F80 M3 or F82 M4, contact us before ordering and we can help you choose a suitable setup.

Important True Rear Considerations

A True Rear coilover places the rear spring load through the damper mounting location rather than the original factory spring location.

Because this changes how suspension loads are transferred into the chassis, the condition and suitability of the relevant mounting points should be considered before installation.

This is particularly important on track-focused F8X builds where suspension loads can be considerably higher than during normal road use.

Professional installation and regular inspection of the rear damper mounting points and surrounding chassis are recommended.

F80 M3 / F82 M4 Compatibility

This BC Racing BR Series True Rear kit is intended for applicable BMW F80 M3 and F82 M4 models using the 5-bolt front top mount configuration.

Please confirm your exact vehicle and suspension setup before ordering, particularly if the car has previously had suspension components changed.

If you're unsure whether this is the correct application, contact us and we'll help you identify the appropriate kit.

What's Included?

The BC Racing BR Series True Rear kit is supplied as a complete coilover suspension package for the applicable BMW F80 M3 / F82 M4, including the front coilovers, True Rear rear coilover assemblies, springs and relevant adjustable components.

Exact top-mount and spring-rate specifications can vary depending on the selected configuration.

Explore More BMW F80 M3 / F82 M4 Parts

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