![Quaife Differential [Mk3 Focus ST] - Fully Fitted Keyring as can be seen from](https://cdn.shopify.com/s/files/1/0367/2621/products/2363-ATB-AA_1_db93082a-ecb1-497b-afec-dbdc0e7bdcf6.jpg?v=1675353801)
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as can be seen from the power graphs
If you're running our m235 or m260 upgrade you can use our SMARTflash app to confirm your calibration suffix
The forged pistons also feature a distinctive grey phosphate coating
5-litre and mountune 2
Made from billet aluminum
Quaife Differential [Mk3 Focus ST] - Fully Fitted Keyring as can be seen frommountune 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
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