Quaife Differential [Mk3 Focus ST] - Fully Fitted Keyring If you're running our m235

If you're running our m235 or m260 upgrade you can use our SMARTflash app to confirm your calibration suffix

as can be seen from the power graphs

and stainless steel outer braid

The mTune comes preloaded with the correct ECU calibration engineered and developed to add the maximum warranted performance increase to your mk7 Fiesta 1

The forged pistons also feature a distinctive grey phosphate coating

Quaife Differential [Mk3 Focus ST] - Fully Fitted Keyring If you're running our m235mountune are pleased to offer a fitting service for the Quaife differential, which transforms your Mk3 Focus ST'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 load of wheel slip across the driven axle. This product includes a fixed labour charge for