"Don't give me that guff, inTgr8r!"
... Ouch
-
Yeah for sure listen to the wheel guys.....
BUT, take it with a grain of salt.
Most of them are just looking up a fitment data sheet.
Very few have any real experience fitting our cars.
I talked to some that had no clue that the M was a different fitment than the 3.0
One thing I did, was look for everyone I could find that had "been there, done that" & got their specs.
When I ordered my Volks, the wheel shop was going with far more conservative offsets than what I
knew would fit.
BUT, I agree... if a shop says "they won't fit, we don't guarantee"
....don't do it.
One thing that can really screw things up are manufacturers (eg iForged) that refuse to disclose fitment data.
I know one guy that went with iForged, who had a bad fitment issue on an E92.
They gave him all kinds of grief - "your using the wrong tires" etc.....
The absolute best way to get the right setup is to get trial fitment from a local wheel shop.
I've had some seriously
wheels on cars to get a trial fitment.