E70 M calipers on the E53

[BMW DIY Guy]

Howdy yall!

I didnt know if anyone over in this forum section might know the answer I am trying to find.

I found the amazing thread linked below, of how to raid E70 and F85 brake components onto the E53 and its something I am actively looking to do.

https://xoutpost.com/bmw-sav-forums/...o-upgrade.html


What is NOT answered though is the rear calipers. I have searched and reached out to the author of the thread, but he hasnt been on in over 6 months, and the questions about the rears haven't been answered.

I am coming from a E53 4.4, so know that the E53 4.6/8is rears are better and can upgrade there. That said, the E70 M rears are MASSIVE (almost the size of the fronts in rotor) but a single piston as well.

Does anyone know if the E70 M rears will work for an E53 like the fronts will? (with the appropriate rotors of course)

Thanks!