2003 e85 Tires/Wheels questions

[Jstilley]

New Z4 e85 3.0 owner and looking to replace stock wheels with something a bit wider for street/light track driving.

Current set up: style 108
8x18 ET47 225/40/18
8.5/18 ET 50 255/35/18

Will the following work without modification:

8x18 ET32 225/40/18
9.5x18 ET35 265/35/18

Any inputs would be appreciated! I've tried using willtheyfit.com and such, but have a hard time making the determination as I'm new to aftermarket wheels/tires

 

[brillomaster]

that might be a bit extreme on the rear... the front is 15mm further out due to the difference in offset, but the rear is +12mm from the wheel width, and plus +15 from the offset, for a total of +27mm. which is quite a lot. you might well get rubbing with a wider tyre too, especially if you're planning on lowering.

 

[j3nks79]

They will absolutely fine.
I run 8.5J ET35 and 10J ET40 with no rubbing etc

 

[Rsipad]

It will work easily. I run 18x9.5 et35 rear and I daily the car. It pokes maybe around 1-3mm on stock suspension and is not noticeable unless you're looking straight down at the fender. The front will actually need a 5mm spacer to be flush. I'm running 18x8.5 et35 front and could do with a 3mm spacer.

Here's a helpful article by Apex Wheels:
https://apexwheels.com/fitment-guides/bmw/z4/bmw-e85-e86-z4-wheel-and-tire-fitment-guide