I bought this set last week from a forum member, I knew it didn't fit but I bought it anyway. Last owner was on bags so looked like a one time scrap. Once I clean and polish, it'll look close to brand new.
Anyways, using the 2 bolts from your E90 bumper won't line up. The curvature of the E90 is higher toward the end and you see the gap between bumper and spat.
I won't be keeping this set but before it's on sale. I'm going to see if an E90 mock up can be made. Can't have E92/E93's have all the fun.
Link for reference
https://europeanautosource.com/downf...mw-e92-m3.html
I kept the center piece, you can pretty much guess the price for half the total price for the 2 pieces once it's for sale.