535xi and wheel spacers

I am waiting for the snow to be gone so I can put my new wheels on my wheel specs are 19x8.5 +35 and 19x9.5 +43. I want the wheels to be pushed out almost to the edge of the well but not so pushed out I can't lower the car w Coilovers. Do I need spacers? If so what size? And where is the best place to order from ?

first you need to put your new set up on the car without spacers, then measure with a caliper in mm form the top side of the tire to the inside of fender front and rear using a piece of masking tape. if your fenders are not rolled now is maybe a good time to have them rolled if you plan on lowering your car. I got my spacers from Turner motorsports. Burger Motorsports has nice ones as well.

I have E61 with BBS 2-piece wheels. I used 12mm in front and 18mm in the back.

35 is perfect in the front for an 8.5" wheel to be almost flush. May need an 8mm or 10mm spacer in the rear to match it. Before ordering spacers I'd wait for coilovers then see how it sits if I were you.

Good idea