DanEvs said:
Do the M wheels fit? Seems to be plenty of them about but I'm sure I've read that they're a different offset or something somewhere along the lines. :?
Yes OEM M wheels fit - I've got a set on my Si coupe at the moment - and lots of other forum members use them.
The Si coupe sits lower than 'standard' 3.0s - I'm not sure if that's the same with your Si.
They have a different offset so they sit a little wider than the standard Non-M wheels - this combined with a higher profile tyre on the M - and the lower suspension setting - mean that you can get occasional rubbing on the arches when pressing on (I've not noticed in normal driving - only on forum runs!). But reducing tyre size back to standard non-M might fix that.
Hope that helps.