One-piece assembly - No splitting or sectional panels to align
wrap-around protection for your wheel hub
Install with OEM fasteners or equivalent hardware
Vertical fence-style slats - Delivers aggressive front-end character without aggressive pricing
Includes essential hand tools in durable construction
Spool Performance ZF 8HP45 / 8HP50 / 8HP51 Billet 300M C-Hub Cog Drive BMW XM (G09) One-piece assembly - No splittingSpool Performance ZF 8HP45 8HP50 8HP51 Billet 300M C Hub Cog Drive The factory C hub cog drive in ZF 8HP45, 8HP50, and 8HP51 transmissions is produced from cast steel. While adequate at stock power levels, casting brings inherent weaknessesporosity, uneven grain structure, and localized stress pointsthat are exposed as torque output, line pressure, and shift aggression increase. Common failure modes include cog tooth deformation, spline wear, and