BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD
BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD
BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD
BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD
BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD
BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD
BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD
BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD

BC Racing

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SKU: I-139-RM

BC Racing RM Series Coilovers (True Rear) for 2012-2018 BMW 3 Series F30 RWD

$1,495.00
Out of Stock (about 4-6 weeks)

Fitment Notes

All suspension is designed to lower the vehicle. Factory ride height cannot be achieved for most applications.

All BC Racing suspension fits 2WD vehicles unless specified AWD. Notes regarding electronic damping (EDC, DDS, etc.) pertain to physical fitment only.

BC Racing coilovers DO NOT interface w/ OEM electronic damping control systems. Additional parts may be needed to remove error codes if electronics exist with the OEM suspension.

Pillowball Mounts do not mean Camber Plates. Pillowball refers to the type of bushing.

Product images may not represent the actual SKU.

Handling Time

In-Stock: 1-3 business days
Products that are in-stock and do not require customization usually ship the same business day if ordered before 2pm ET. Orders placed after 2pm ET will ship the following business day. 

Out of Stock: 3-5 weeks
Products that are out of stock have an average lead time of 3-5 weeks.

Custom Builds: 3-5 weeks
Custom builds vary in time based on the options selected and available parts. Custom builds include any combination of the following options.

  • Extreme Low
  • DS/ER/RM/HM/ZR/ZX Series
  • Custom Spring Rates
  • Swift Springs
  • Top Mounts

Out of Stock (Swift Springs): 1-3 months
If Swift Springs are out of stock, the wait time can be about 1-3 months. Please ask for an ETA prior to ordering.

Returns

Orders can be returned within 30 days of fulfillment if all rules shown below are met.

  • Products must be in original packaging and in a new and resalable condition.
  • Any product that was used or fully/partially installed is non-returnable.
  • Custom products, special order products, and services are non-returnable and non-refundable.
  • Shipping fees and tax are non-refundable.
  • If the return of an item was caused by an error on our part, or a manufacturer's part, we will cover the shipping fees.

More Details

2-Year Warranty

BC Racing North America offers a two-year warranty against manufacturing defects. All warranty claims must be submitted directly to BC Racing North America.

More Details

Product Details

BC Racing RM Series Coilovers for the 2012-2018 BMW 3-Series F30 are purpose-built for McPherson-strut cars that see serious track time, with an inverted mono-tube damper engineered to outlast a hard season of lateral loads. Every kit is extensively tested on the 3-Series F30 chassis and refined until it balances ride quality with performance — the reason 3-Series F30 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.

The RM Series inverts the mono-tube damper on strut-equipped chassis, putting the heavy internals where the lateral loads are worst. A wider piston shaft than conventional uprights means more consistent damping on long sessions and more fatigue life before rebuild. Where BC Racing separates itself is tuning philosophy: every off-the-shelf spring rate and damper setup is chosen to stay comfortable on daily roads while still delivering real performance at the track. If you want something different, Swift Springs, custom rates, and custom valving are all options at checkout — BC will match the valving of the dampers to whatever springs you pick, something most brands don't offer outside their flagship race lineup.

Since 2004, BC Racing has grown into one of the most trusted names in aftermarket coilovers — not by racing to the bottom on price, but by pairing that price with real build quality, deep customization options, and a damper design any suspension shop can rebuild instead of replacing. These 3-Series F30 coilovers arrive tuned for the 3-Series F30 chassis and ready to bolt in — no break-in period, no guessing at setup. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts (pistons, seals, shafts — no unit replacement required when it's time for a rebuild), and in-house tech support from both BC Racing and the Springrates team.

Features

  • 30-level simultaneous compression/rebound damping adjuster
  • Inverted mono-tube damper (front) with oversized 46 mm piston shaft
  • Handles higher lateral loads on McPherson-strut applications
  • Ride height adjustable independent of spring preload
  • Upper mount hardware varies by chassis — camber plates, pillowball, or reused OEM mounts. See the Specifications table for what's included on your kit.
  • Swift Spring and custom spring rate upgrades available at checkout
  • Custom damper valving paired with custom spring rates on request
  • Fully rebuildable — replacement parts available from BC for the life of the shock
  • 2-year manufacturer warranty against defects
Specifications
Part Number I-139-RM
Part Name RM Series Coilovers
Vehicle 2012-2018 BMW 3 Series F30 RWD
Drivetrain RWD
Damping Adjustment 1-Way (30 levels)
Ride-Height Adjustable Yes
Spring Rate - Front
Spring Rate - Rear
Camber Plates - Front Included
Camber Plates - Rear Not Applicable
Suspension Design - Front True Coilover
Suspension Design - Rear True Coilover
Notes True-Rear coilover conversion replaces the factory divorced shock-and-spring with a single coilover unit.
Vehicle Fitment
  • 2012 BMW 3 Series F30 RWD
  • 2013 BMW 3 Series F30 RWD
  • 2014 BMW 3 Series F30 RWD
  • 2015 BMW 3 Series F30 RWD
  • 2016 BMW 3 Series F30 RWD
  • 2017 BMW 3 Series F30 RWD
  • 2018 BMW 3 Series F30 RWD

Reviews / Q&A

FAQs

Please read our FAQs page to find out more.

How much will BC Coilovers lower my car?

On average, Standard Drop allows about 1-2 inches of drop range below factory ride height. Extreme Low allows about 2-3 inches of drop.

Can BC Coilovers achieve factory ride height?

No. In most cases, factory ride height cannot be achieved.

What is a custom build vs off-the-shelf kit?

The stock level displayed on our website reflects the availability of standard “off-the-shelf” kits, unless noted otherwise in the product description. Selecting any custom options—such as Extreme Low, custom spring rates, Swift Spring upgrades, or top mount changes—will result in a custom-built kit. Please note: all series except the BR Series are built to order, with the exception of select popular DS Series kits that may be in stock. Also, some popular Extreme Low kits are in stock as well. To identify these, look for "Extreme Low" in the product title.

Will the struts be valved correctly?

Yes! The shocks and/or struts are always valved to match the spring rates you choose during a custom build. There is no additional cost.

Can they be rebuilt?

Yes, all BC Racing Coilovers can be rebuilt by purchasing individual replacement parts. For example, if a strut leaks, you can simply replace the shock cartridge.

Is there rush shipping available?

Rush shipping is not offered, but all in-stock kits ship very fast— most by the next day.

Customizing the coilovers in any way will delay the shipment by a few weeks on average.

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