R56 front sway bar
 

Do they make a small front bar for the R56?

Does anyone know the size difference from the MC and MCS from bar?

Found this: stock sway bar is 17mm, sport suspension sway bar is 18mm. I think this is R56. Would 1mm be noticeable?

Yes it is, try to drive a car with and without.

I am curious about this topic. I have been in other FWD circles and they too tend to limit the front swaybar on FWD cars. Others tend to beef them up saying that the reduction in roll is of more benefit than the balance that you would gain by going smaller. Has anyone experimented with going larger?

sway bar size
 

I've started with large bars, and have always evolved to smaller ones. Basically, you just get too much lifting of the unloaded wheel with a big bar.