BC RACING COILOVERS DS SERIES - BMW 1 SERIES F20 M140I (14+) (3-BOLT TOP MOUNT) F21) Non GPF Model Only including XDrive TRS Home Flashing Device is

TRS Home Flashing Device is capable of holding 5 tuned files

equipped with TRS Performance power

Decat/downpipe

Pillowball top mounts

Full BMW Integration: Maintains full compatibility with BMW systems and preserves factory warranty

BC RACING COILOVERS DS SERIES - BMW 1 SERIES F20 M140I (14+) (3-BOLT TOP MOUNT) F21) Non GPF Model Only including XDrive TRS Home Flashing Device isThe BC Racing DS Series is built around digressive valving, offering similar benefits to the BR Series but with a stronger focus on track performance. The digressive piston design delivers a non linear damping curve, allowing higher low speed damping to control body roll during cornering, braking, and acceleration, while reducing high speed damping to let the suspension travel freely over kerbs and rough sections without unsettling the chassis. Key