18x9 and 18x10 Rims, spacers help?

[senbei]

Hi guys, I've been searching the forums the past week for spacer advice. There's a lot of posts but none with the same setup that I'm trying to run. I'm planning on running the APEX SM-10 18" OEM+ recommended setup 18x9 ET30 and 18x10 ET25. I have passive suspension, regular brakes, and '15 F80.

I'm in Seattle and plan to run it with Conti DW06 plus in 255-275/40/18. I don't plan to go to the track with my all seasons. If there's a different ET that can utilize my current 12&15mm spacers that would also be appreciated. Currently running 437Ms with 15mm fronts and 12mm back.

I appreciate any and all the help I can get.

[MineralWhiteF80]

Ideally, you should not use spacers if you don't have to. With that said:

Assuming you want to stick with 255 front tire and 275 rear tire, have no desire to change to wider tire sizes in the future, and you are keeping your stock suspension/alignment settings, the Apex wheel sizes you indicated are probably the best sizes available.

The front 9" +30mm Apex wheel plus adding your front 15 mm spacer will fit almost identically to how your m437 front wheel currently sits with your 15 mm spacer (tire/Apex wheel will move 1 mm inward more, away from the fender).

The size of the rear 10" +25mm Apex wheel is the equivalent to your stock m437 rear wheel with a 15 mm spacer added. So for the rear Apex wheel, you don't need a spacer, and it will actually stick further out by 3 mm than your m437 and a 12 mm spacer. Adding your 12 mm spacer to the Apex rear wheel will not give you the result you are after. Essentially like you are adding a 24 mm spacer to the stock m437 rear wheel.

[MineralWhiteF80]

EDIT:

Forgot to add: If you are worried about the rear Apex wheel sticking out 3 mm more than you current setup, I suggest you swap a 15 mm spacer onto your rear wheel and then look at the car and see if you like how the 437 rear wheel fitment looks.