Hi All: I am still new to the Audi line, but when I got my M3 smog check for the sale, it got me thinking about how do we get our Audi smog check, since now they require us to put the car on a dyno like device so the car is checked under load.

Most smog station only have 1 tread mill. Do we have to go to special smog shops?

Thanks.

There's pletty of AWD dynos out there, just a little more expensive. I'm sure there's a few official AWD smog centers, but every center should be able to deal with AWD cars I would think.