BC Racing BR Series Coilovers – BMW X3 M40i / X4 M40i (G01/G02) B58

OVERVIEW

The BC Racing BR Series is the most popular coilover BC makes — a fully height- and damping-adjustable kit that works equally well as a daily-driver drop or a weekend track setup. For the AWD G01 X3 M40i and G02 X4 M40i it pairs 30-way adjustable damping with full-length adjustable ride height, so you can lower the vehicle and still preserve shock travel and ride quality.

SPECS

• 30-way adjustable damping (compression and rebound together)
• Full-length adjustable ride height — set height independent of spring preload to preserve shock travel
• Mono-tube shock design with T6 aluminum lower mounts
• High-tensile SAE 9254 springs; Swift spring upgrade available
• Front camber plates included where the application allows
• Fully rebuildable and serviceable; 1-year warranty

PARTS INCLUDED

• Set of 4 BC Racing BR Series coilovers, assembled with springs
• Front upper mounts / camber plates (application dependent)
• Spanner wrenches and damping-adjustment tools
• Installation hardware

TECH RESOURCES

• If your vehicle is equipped with the optional adaptive M / EDC suspension, an adaptive damper (EDC) delete or bypass is required to prevent a suspension warning light (not included)
• A professional wheel alignment is required after installation
• Professional installation and corner-balancing are recommended; installation follows the standard BC Racing coilover procedure

PART NUMBER

• I-100-BR-RA

VEHICLE APPLICATIONS