Will 285/35/19 on a 9.5" wide rim +25mm offset fit on a g35 couple without rolling the fenders. Also will 255/35/19 and 285/35/19 work without problems with the VDC?

 

yes, it will be pretty sunken in fact

 

+1, it will work just fine

 

I run those sizes and have no issues w/ VDC. As for offset, I run 285/35/19 on a 10.5 wheel w/ +22 offset and had to mod. the fender, so you should have no issues w/ a 9.5 and +25 offset.

 

Could I add wheel spacer to make it flush and what size would be safe? Also, I know these are the max size of width for these rims but am I going to have a lot of bulge in the side walls. I going fi in march so I want to go wide but don't want to replace my rims.

 

you will have to roll the fender if you want a wheel flush with the fender... the fender as you can see on your car has about a 1/2 inch lip that must be rolled upwards or it will cut into the tire under compression of your suspension, or if you are lowered enough.

 

I run a 9.5+30 with a 25mm spacer and a 285/35/19 on my g35 coupe with rolled fenders and I still have some clearance, so a 20mm spacer would work if you rolled your fenders