those are 18x8.5 +35mm. wheels.
per your other thread your wheels are 17x6.5, but an unknown offset. i'd assume it's the "stock" +52mm we all know and love.
knowing that, use a calculator to compare....
- his 8.5" wide wheels are automatically wider by 1" on each side.
- the lower +35mm offset moves the wheel out from the hub more, making the outside actually 1" + 17mm more out (total of 1.67"), and 1" - 17mm more in (total of 0.33").
that's compared to your stock wheels. a 25mm spacer on your stock wheels will make your effective offset +27mm (8mm lower offset). so compared to that wheel, with the new offset...
