GenII MPS3 - Camber & Tyre Wear
I thinks it's a problem with too much toe on the oem alignment, coupled with a bit of camber, which results in dragging the inner tyre.
I always get decent 4 wheel alignments (used Bob Jane and Jax so far) and rotated tyres. Never had a problem (although I'm happy if I get 20k out I my tyres, they are at least fairly evenly worn ha ha).
Just ask for no (or very little) toe in at the rear, minimal camber and get the alignment printout (you can read up on suspension theory if you want to decide how to set it up). Toe and camber are adjusted together, so if you can't get the result you want, you can buy either adjustable toe arms (try 2xs) or camber arms (corksport, jbr, many others) which let you adjust them independently. Then just monitor your tyres. rotate them regularly, and enjoy!
GenII MPS3 - Camber & Tyre Wear
20k is just because I run semi slicks (ad08/rs3) and beat the shit out of them! Lol
You can't do much with front camber stock, except by using suspension slack. I think you can adjust front toe though? @Reedy has a better understanding of that I would guess.
My limited understanding is that both can be adjusted in the rear (and that's where most of the inner tyre wear happens), but they adjust together. I.e. You move one bolt which affects camber and toe at the same time, so it's a compromise. Hence why people get either camber or toe arms to isolate one from the other. Does that make sense?
Edit: looks like it can happen in the front too. I'll pull up the stock alignment specs when I get home.
GenII MPS3 - Camber & Tyre Wear
Here we go. Specs an adjustments.
http://tapatalk.imageshack.com/v2/15...d68f6db7aa.jpghttp://tapatalk.imageshack.com/v2/15...471177288c.jpg
The factory specs give massive margins of error for toe in (200% for the front, and like 125% for the rear). Means your toe can be shot to hell, but still within 'factory spec'.
Go to a shop and give them the actual specifications you want and they should be able to do it. They will also be able to tell you if they had any problems and you can work out what you need to upgrade, if at all.