Product Details

BC Racing BR Series Coilovers for the 2025+ BMW X3 (G45) are BC Racing's entry-level coilover and the most popular kit in their entire lineup. They offer the most accessible entry into adjustable coilover suspension without sacrificing performance, comfort, build quality, or handling. Every kit is tested and refined until it balances ride quality with performance, which is why BC Racing coilovers are among the best-selling adjustable kits in their segment worldwide.

Every BR Series kit is built around a mono-tube damper with simultaneous compression and rebound adjustment at every corner, giving a wide damping range without the complexity of a race-only setup. Ride height is fully adjustable independent of spring preload, so you set the stance and the ride separately. Drivers who want a different recipe can spec Swift Springs, custom spring rates, or custom valving at checkout, and BC will tune the dampers to match.

BC Racing has been manufacturing adjustable coilovers since 2004 and is one of the most popular coilover brands in the automotive tuning industry for a reason: competitive pricing, deep customization, proven reliability, and a fully rebuildable damper design. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts, and in-house tech support from both BC Racing and the Springrates team.

Features

  • 30-level simultaneous compression/rebound damping adjuster
  • Mono-tube damper with linear piston and hardened chrome shaft
  • Ride height adjustable independent of spring preload
  • Upper mount hardware varies by chassis. See the Specifications table for what is 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, with replacement parts available from BC for the life of the shock
  • 2-year manufacturer warranty against defects
Specifications
Part Number I-167-BR
Part Name BR Series Coilovers
Vehicle 2025+ BMW X3
Drivetrain AWD
Chassis Code G45
Spring Rate - Front 5.5 kg/mm
Spring Rate - Rear 7 kg/mm
Ride-Height Adjustable Yes
Vehicle Fitment
  • 2025 BMW X3 AWD (G45)

Customer Reviews

Questions & Answers

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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