i just put some replica g35 7 spoke on my sig 18-8 30mm offset and they stickout on the front alot---wat gives---will 18-7.5 35mm be better

 

what you you mean "what gives?"

your stock wheels (IIRC) are 6.5" wide with a 45mm offset.

Therefore, a 8" wide rim with 30mm offset will stick out roughly 3.5cm more than your stockers.

a 7.5" wide rim with 35mm offset will be about 10mm farther "in" than the 18x8's....

I'm not sure what you consider 'sticking out alot' though. Plenty of 4th gens are runng 18x8 G35 rims and they look fine. Did you read the sticky at the top and look at the photos?