BC Racing Coilover ER 06-12 3 Series E90

The BC Racing ER Series Coilover System is a high-performance suspension solution for enthusiasts and racers. It features a mono-tube damper with a linear twin-piston design, offering 30 clicks of independently adjustable compression and rebound damping. Remote reservoirs increase oil capacity and enhance heat dissipation for consistent performance. The system allows for independent ride height adjustment without compromising spring preload. Front and rear camber plates are standard on applicable kits, with front and rear pillowball mounts used otherwise. The coilovers are highly customizable, with options for custom spring rates, compatibility with Swift Springs, and custom valving to match requested spring rates. Each system is fully rebuildable and comes with a 2-year warranty against manufacturer defects.