Fiesta ST180 2013 B6 Quaife Differential AP Racing Gain 10 - 18 bhp

Gain 10 - 18 bhp depending on spec of your ST

each stud is shot-peened to remove surface irregularities

Removes original Cat

Wastegate unit (pre-assembled with spring as per order)

As the damper unit opearates the oil contained within heats up

Fiesta ST180 2013 B6 Quaife Differential AP Racing Gain 10 - 18 bhpSupplied as original equipment to the Ford Motor Company for the 300bhp Ford Focus RS, the Quaife automatic torque biasing (ATB) helical gear limited slip differential (LSD) is a direct replacement for your cars factory open unit. Backed with the peace of mind of a lifetime warranty, the Quaife ATB helical gear limited slip differential is fully automatic and progressive in operation and unlike plate style units the Quaife ATB never locks, but