Quaife ATB Differential [Mk3 Focus ST] 2.3 Duratec ensures that the usual hot/cold

ensures that the usual hot/cold heat transfer associated with replacement gear knobs is not experienced with the mountune upgrade

Available in two different and contrasting colours

Whilst this product will pass current UK MOT tailpipe emissions regulations

Please note: Not compatible with optional engine cover

Quaife ATB Differential [Mk3 Focus ST] 2.3 Duratec ensures that the usual hot/coldAvailable from mountune, the Quaife ATB helical LSD differential for Mk3 Focus ST fits the MMT6 gearbox. A direct replacement for the standard Ford open differential, the Quaife differential transforms your car's performance. Unlike a conventional plate style limited slip differential, the Quaife differential relies on gears rather than clutch plates for its operation. That means it is much smoother in operation and never locks harshly with a set pre