Okay so im looking at Montegi Racing MR 118 there 18x8 with a 32mm offset i know thats cutting it close becouse from what info ive found you want 35 to 42 but it wasnt clear since the guy was talking about both 18x8 and 18.5s in the thread thanks. also is a 3mm spacer possible? And if it will fit what size rubber should i use?

 

I have 17x7.5's 42 offset with a 17.5 spacer so my final ET is 24.5.. I think you'll be just fine with a 32 offset. You'll be pretty close to flush probably. If you put a 3mm spacer that would put you at 29..

Someone correct me if I'm wrong...

Go with 225/40/18.

 

You are correct that a 3mm spacer on an ET32 wheel would give an effective 29 offset.