Product Details

BC Racing ER Series Coilovers for the 2006-2011 BMW 1 Series Sedan (E87) are a premium suspension upgrade designed for enthusiasts who demand top-tier performance on both the street and the track. This track-ready coilover system features a mono-tube, twin-piston design with remote reservoirs, offering 30 levels of independently adjustable compression and rebound. The added reservoir increases oil capacity for improved heat dissipation, making these coilovers ideal for aggressive driving and motorsports use.

Developed through extensive on-track testing and backed by BC Racing's reputation for quality, the ER Series is a fully adjustable coilover system that delivers precision handling, customizable ride height, and unmatched tuning flexibility. Whether you're building a daily-driven street car or a competitive weekend track car, these coilovers are engineered to give your Toyota GR Corolla the performance edge it deserves.

BC Racing ER Series Coilovers are not available in Extreme Low.

Features

  • Highly customizable
  • Mono-tube damper
  • Linear twin-piston design
  • Height adjustment independent of spring compression
  • 30-clicks of compression adjustment via the external reservoirs
  • 30-clicks of rebound adjustment from the top of the damper
  • Front and rear camber plates standard on all applicable kits
  • Front and rear pillowball mounts standard when camber plates do not apply
  • Custom spring rates and Swift Springs compatible
  • Custom valved to match the drivers requested spring rates
  • Swift Springs upgrade available on most applications
  • 2 year warranty against manufacturing defects
  • Fully rebuildable with replacement parts
Specifications
Part Number I-11-ER
Part Name ER Series Coilovers
Vehicle 2006-2011 BMW 1 Series Sedan
Chassis Code E87
Front Springs (kg/mm) 62-135-8kg-S
Rear Springs (kg/mm) 62-240-12kg
Front Swift Springs (kg/mm) 62-127-X
Rear Swift Springs (kg/mm) 62-228-X
Front Camber Plates Included
Rear Camber Plates Not Applicable
Note 1 Pillowball Rear Top Mounts are not available
Vehicle Fitment
  • 2006 BMW 1 Series Sedan (E87)
  • 2007 BMW 1 Series Sedan (E87)
  • 2008 BMW 1 Series Sedan (E87)
  • 2009 BMW 1 Series Sedan (E87)
  • 2010 BMW 1 Series Sedan (E87)
  • 2011 BMW 1 Series Sedan (E87)

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.

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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