BMW 4er / 4-series (F32, F33, F36); (3C)

Different types:

STX: Height adjustable coilover suspensions

STXA:  Height adjustable coilover suspensions with adjustable rebound damping

STXTA:  Height adjustable coilover suspensions with adjustable rebound damping and adjustable top mounts

STXTA PLUS 3: individual lowering & adjust rebound (low) & compression (low&high)

V5: Height adjustable coilover kits with 2-way adjustable compression damping, adjustable rebound damping and top mounts.