Big Brake Upgrade Kit

The mountune Big Brake Upgrade for mk3 Focus ST has been designed as a direct replacement, bolt-on kit for Focus ST owners.

This kit manages to maintain the refined ‘OE’ feel associated with mountune products, yet also provides a huge boost in braking performance.


  • ST red 4-pot mountune-branded Brembo monobloc calipers
  • 350mm grooved discs
  • Braided brake lines
  • Dust shields
  • All required mounting hardware
  • Will fit behind most aftermarket 18” wheels, and the standard 18” ST wheel if used with a 5mm spacer

Please note: Please allow one week for delivery.

Customer Reviews
5.0 Based on 5 Reviews
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
    Alex P.
    France France

    The kit is really perfect, there is everything you need! I was surprised when I was told the weight of the pallet! I did not think it was so huge !! We remove the old braking and replaced by the new, easy nothing to change, perfect! I did not use the brake fluid supplied (pagid 5.1) because I use the rbf 600 at motul, but everything is felt, more bite and duration in the braking!

    mountune / Big Brake Upgrade Kit Reviewmountune / Big Brake Upgrade Kit Reviewmountune / Big Brake Upgrade Kit Review
    Darren H.
    Mk3.5 Focus Big Brake Upgrade

    A big improvement over the standard ST brakes. A great looking set up too and matches the rear calipers

    Ian B.
    Great quality

    Wow the brakes look amazing, and most importantly feel amazing such a great product, the calipers are huge! highly recommended!

    mountune / Big Brake Upgrade Kit Review