January 22, 2025
focus RS brakes | SwedeSpeed

focus RS brakes | SwedeSpeed

So in order to kind of make this a one stop shop for Focus RS info as the name is so clear, I will add all my info I know about the conversion so far. I got the install done on the front this weekend with the blue calipers. Below is the parts list I compiled and some notes and pics.

I will be doing the rears as well with the matched blue calipers and brackets from Ford, but I am still collecting the parts for this. I will update in this thread once I do those as well.

Also, funny side note. I planned on adding the wheel bearing brackets when doing this. Apparently, I had one on the driver’s side but not on the passenger side… no clue…

My wheels are Konig Rennform 5×108, 18×8 et40 wheels. Just for a size reference.

The parts needed are from 2016 Ford Focus RS mk3. I used Motorcraft parts. From what I have read, they are the same as the Ford labeled parts. No issues with any of them.

  • Front only parts
    • Brembo Blue Calipers – There are silver versions as well that are more expensive?
      • Left – Ford# G1FZ2B121B / Motorcraft# BRCF355
      • Right – Ford# G1FZ2B120B / Motorcraft# BRCF357
    • Carrier bolts x4 – Ford# W714753S442
      • 9/16” good quality drill bit
      • These bolts are larger than the stock Volvo bolts and you need to drill out the bolt holes in the hub to take the new bolts.
    • Brake lines of your choice for the RS.
      • I used the Goodridge part# 12339 Stainless lines – front and rear kit
      • Only the fronts are needed but the backs will fit as well. They do not have the specific rubber attachments and bumpers on the lines to match the Volvo setup. I already had a kit from FCP Euro (I think) for the C30 and I transferred over the bumpers and such from those. It worked out good for me.
      • I have seen some folks just use the stock RS lines from Ford.
    • Hardware kit for the Brembos x2 (pins and brake pad spring) – Ford# G1FZ2068A
    • 5mm wheel spacer required for behindthe rotor for proper alignment of the rotor to the caliper
      • I used hub centric spacer from the bay. I had to turn it down to about 145mm diameter to fit inside the back of the rotor.
      • I also had to file out the center bore about 1/2mm with a round file as the hub bore was slightly wider at the base.
    • 350mm RS rotors of your choice x2
      • I understand the Ford rotors are pretty reasonably priced. But, I did not use them.
      • I used rotors from R1 Concepts, drilled and slotted, black zinc coated. They look great and I have used their rotors on several cars and never been disappointed.
    • Pads for the Brembos of your choice
      • I got ceramic pads from R1 Concepts as well. Low dust and respond nicely for me.
    • Brake grease for all your lubrication needs
    • Volvo heat shields for 320mm brake setup x2 – Volvo# 30778891
      • Still not as large as the 350mm rotor, but better than the 300mm version.
      • I bent the little ears straight so there was no chance to hit the rotors. I think there is clearance to not do this, but it just made more sense to me to do it.

Old and busted

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New hotness!
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Other random shots from the install
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