So I have a 2004 g35 sedan. I want to get wheels and tires in the next few months I am looking at 19s to accommodate akebono brakes in the future. So far I have decided on the anovia elder 19s in 19x9.5 and 19x10. The offsets offered ar 12 up front and 15 in back.

My main questions would be; does that offset sound right? Also what size tires should I be looking at?

 

Caliper clearance will soley depend on the design of the wheel spoke/face of the specific wheel model.
Some companies provide a face types for certain widths and offset to help the buyer know about brake clearances.

Anovia Elder is the brand, so which model wheel are you considering, Deco Directional, Apollo, Raven?

You can search cars with large calipers that have those wheels as a reference for clearance; g37, 370z, exo8-10, sti.

19X9.5 +12 and 19X10.0 +15 are a bit aggressive for your sedan, but can be made to work with the right amount of negative camber and stretched tires.

normally, 9.5" width has a tire section width range of 245mm to 275mm
10.0" has a range of 255mm to 285mm
Those ranges are general reference off the European Tire and Rim Technical Organization (ETRTO)

here is a 19x9.5 +12 and it has 225 stretched in the front. front fenders were pulled also
https://www.customwheeloffset.com/wh...tein-coilovers

The rear will be similar with stretch and camber.

 

So deco directional is what they call their directional wheels and Raven is their black color. Elder is the model, though i do think it was originally marketed as the deco directional. https://www.fitmentindustries.com/bu...spension=Stock
in my original post I listed the offsets backwards, so the 9.5s have +15 and the 10s have +12.

I also neglected to mention, if possible I would like to have more of a stock look without stretching the tires. I don't plan on lowering it too aggressively, I actually want some gap between the tire and fenders.

 

If that's the case, you'll want to choose a higher offset for those wheels.