Wheel offset
 

Does anyone know what is the min offset we need for wheels to clear our brakes im buying cheap drift spares of cragslist.

What do you mean by minimum? Like your trying to get more then lets say 35 --> 45 offset or going from 35-->25 ??

What brakes are you running? Or trying to run? What size wheels are you trying to run, are you going to have any mods to increase lock? Stock et is like 47.

Here is a link with different oem BMW wheels and specs:

http://felgenkatalog.auto-treff.com/

I am buying random wheels off cragslist and I want to of they would clear my brakes as it is currently 20 degrees. I have drilled and slotted rotors but I think the calipers are stock. And I am also getting corvette sawblades for good wheels

if you are going to run sawblades, they are +50 or more offset, so you will be using spacers anyway. if you are stepping up to m3 brakes, you cant have anything less than a 17" wheel so be aware of that.

in the past i have had a 17x8 +10 bbs that cleared fine on the front fenders without even rolling them.

long story short, your options are pretty much open. any OEM BMW 15, 16, 17" wheels will work for you also

There are some BMW wheels that will fit over E36 M3 brakes many of the stanced community have the 16 style 5's over them. Not sure why you would other than snow tires.

But that is their decision. Drift wheels? Cheaper the better correct because folks tend to hit curbs and such when learning.