Thats What She Said
P0125 code again, looks like a change of the thermostat is needed on the SVT.
Finally finished up the custom grill and reinstalled the AEM CAI, In love at the moment. Also installed my stock 17s so i can actually drive this thing.
Bought some rusty caliper brackets from an '07 Mazda 5, been cleaning them up:
Just about ready for paint
Will be installing on the ST in the next few weeks
It's a part needed for the so called frankenbrake upgrade to space out the caliper to allow you to run a larger rear rotor (either volvo s80 or focus RS rear rotor), with the same caliper as OEM.is this an up grade not heard of this before
Yep, suss got it right, probably should have said what i was up to in my post is this an up grade not heard of this before
It's actually not the poor man's version of the Ford Performance rear brake kit because the Ford Performance kit uses the ST rotors but the painted rear calipers from the RS. They don't include the bracket to swap the RS rotor in.Yep, suss got it right, probably should have said what i was up to in my post 
So this bracket replaces the one on my ST (bolts right up, no other mods) and lets me re-use my oem rear caliper/pads/lines but lets you fit a ~302mm rotor from the RS. The stock ST rotor is 275mm, so you gain an inch in rotor.
It's essentially a poor mans version of this setup: https://www.cjponyparts.com/ford-performance-rear-brake-kit-focus-rs-focus-st-2013-2018/p/M2300WR/
I just like the project aspect of piecing this together (and of course saving money.) I sourced the brackets locally for $70 (I probably could have looked harder and saved money but i was impatient.) You can order the brackets new online but they will cost roughly 2x, I dont mind the elbow grease. Then I ordered the oem RS rotors for about $70 shipped. So potentially under $150 for a rear upgrade, not too bad
I am in the process of piecing together the RS front Brembo setup, so i wanted to get the rears done too. So front and rear can be done for around $700 if you stick with oem pads/rotors. I'm opting to get the Mountune yellow street pads front/rear, mostly because i hear they are far less dusty (I wont complain if they perform better though ) but they will add about $200 to my costs.
I didnt even catch that it said ST rotors... Saw the blue caliper and bracket and just assumed that was the end goal was larger rotors. Totally not worth it if you arent changing the rotor diameter. Be better off to just upgrade your existing pads than do the Ford Performance rears. I really cant see this RS caliper/pad setup being an upgrade. The only benefit i could see is if you want your rears to be the same factory blue as the front RS Brembos (although an aluminum colored version of the Brembo's are made as well.)It's actually not the poor man's version of the Ford Performance rear brake kit because the Ford Performance kit uses the ST rotors but the painted rear calipers from the RS. They don't include the bracket to swap the RS rotor in.
RS Rear Calipers
Production ST brake rotors
Production RS brake pads
All needed installation hardware
Straight up bolt on no mods required not bad for $100 when a mountune, etc will run you $350! This is like the $65 rs airbox mod vs the $300 roush, etc cut out box.