Originally Posted by Lonestar
Greetings from Germany, I'm planning to use STI brembo 4 pots on my Subaru BRZ and have heard various rumors on why that might not be a good idea after all (differential bore on pistons constraining the way they need to be mounted which means bleeders and plugs need to be swapped (apparently a real pain)
Also when doing that, the caliper is sitting upside down from it's original position (STI compared to BRZ) and rumors say the internal fluid transfer will then be in the top and hard / impossible to get all air out of the system.
Has anyone ever taken the two halves of these calipers apart?
Does anyone know for sure where exactly in the caliper the internal fuild transfer bore is?
Would the use of an external fluid transfer pipe (like on Evo brembo calipers) solve the issue mentioned above?
Many thanks in advance for your help, guys.
Although it may seem like a good idea to stick with OEM parts, in this case it wouldn't be ideal due to the modifications required to make this possible.
If you are planning on using the calipers from a 04-07 STI you are correct about having to flip the crossover tubes and bleeders due to your calipers being mounted in front of axle vs. the STI behind axle. Since your calipers have internal crossover tubes this wouldn't be possible.
We would highly recommend you save yourself some time and consider our 4 POT kit that was designed to be direct bolt on.