Sorry if this was posted before but i didnt find answers....
1) Why do people swap spin brush magnets into the RS S2 can?
2) Does it matter if you swap the magnets into RS S1 can?
3) What is the advantage of swapping spinbrush components into RS S2 can and not just use spin brush can?
The can only makes a tiny difference because of ventilation and how it's already built to fit into the space allotted. It doesn't really matter if the can is all you're talking about, not the magnest or armature attached.
__________________
Mazda Savanna RX-7
stage 2 motor | spaced wheels