Mountune USA - Ford MMT6 Gearbox Transmission Service and Upgrade
Mountune offers a complete Ford MMT6 Gearbox service and upgrade for Focus ST (2013-2018) and Focus RS (2016-2018).
Your gearbox will undergo a full teardown where each component will receive a motorsport grade cleaning prior to being inspected by our experienced professionals.
The fragile standard synchros are then replaced with our carbon lined heavy duty components along with all new upgraded bearings to ensure accurate selection when going through the gears–even under hard acceleration.
To get the maximum performance out of your Focus ST/RS MMT6 gearbox we would highly recommend adding the optional WPC gear and shaft treatment and Quaife ATB Differential upgrade prior to reassembly.