Use the "Search Community" at the top of your screen and enter "Brembo upgrade " to find a number of related links. Do NOT use the advanced option.

 

You won't gain anything, besides the cool factor, by replacing just the same size calipers. You would need larger diameter rotors and calipers to match to make a difference. Just my opinion.

 

I believe the 4 pot brembo's have a slightly bigger front rotor (not sure of the thickness) when compared to the stock 6th gen outback rotors.

Another thing to think about is the effect on the auto braking systems (RAB and pre-collision braking).

 

Who mentioned that Cadillac ATS-V brakes would be compatible? Thanks

 

get better pads and rotors for what you have, you don’t need Brembos. You’ll gain more noticeable performance with better tires as well.

 

That's what I would do ^, much easier, and the main reason, these are not high performance cars. Even on my 05 Legacy GT wagon 5mt, with bigger turbo and upgrades, I still ran stock calipers. The only real issue was the one time on the highway, when I learned about how quick the car went from 60mph to 100mph, and how fast the closing speed was to other cars. Once that lesson was learned, I learned to lift off the throttle sooner.

 

Hasn't someone put on front ascent brakes? They would be more capable for stopping power and pretty much bolt up to our gen 6 outbacks. Yup, found the thread for your reading pleasure.
I didn't go through it all so if you plan on doing it, I highly suggest reading the whole thread. But it appears the backing plates are the same and the calipers will just bolt up no problem. They have much larger rotors as well.

 

I have the ATS-V setup from CTSVbrakeswap.com that is technically designed for the 22+ WRX. His adapter kit matched the 6th gen perfectly. Only thing I can't answer is how small of a wheel can fit. I'm running 19x8.5

*OLD VERSION* 22+ Subaru WRX 4 Piston ATS Big Brake Bracket Kit

This bracket kit allows you to bolt on 2013-2019 Cadillac ATS 4 piston Brembo calipers along with 326mm (12.8") 2005-2017 Subaru STI brake rotors onto your 2022+ VB Subaru WRX. With the ATS Brembo calipers costing about $140 per side brand new this entire front brake setup can be completed for...

ctsvbrakeswap.com

 

4 piston or 6 piston? What about rear? Can you do Brembo rear also?

 

Ascent rear brakes have slightly larger rotors, and different pad material. Appears everything else is the same even down to the pad dimentions.
Ascent.

Outback

Honestly if you want to upgrade the brakes the ascent front's are good. But little to no reason to upgrade the rear. you could run the ascent pads I suppose. But for off-roading purposes you want more rubber and smaller wheels. Going to keep my brakes stock cause I like the big meaty tires

 

JMO, but I think this would be throwing money at the wrong car.

 

I have 2008 STI Brembo's on my 2015 Outback 3.6. I'm amazed the stock brakes are so shitty, although its par for the course with Japanese cars.

I can't comment on the OP 2020 Outback to STI brake swap, but I'd dare to say, it's the same thing. STI brakes went to 6 pot in 2019 (I think) and possibly larger rotors.

My swap was STI front calipers, rotors, and pads. The rotors are only 1/2" larger diameter, but made a VERY noticeable difference. You will definitely require STI wheels as the caliper is HUGE! and the offset is needed to clear them. I can post up a picture of how they look.