Hello , I have asked for help on 19 inch set up a couple of time here. But I have not found the info I need.. it's all sort of confusing for me. If someone can give me a more accurate description of the set up. I found a deal for g37 coupe rims with tire for a good price. Rims are 5x114.5 , tires are 225.35.19
255.30.19. So if I buy them , would they fit my g without any mods ? Thank you.

 

those tires are really small in diameter. at least the front and rear are close in diameter.
I don't know if deviating from the factory set diameter will affect any of the sensors on a awd car, but your speedo will be reading wrong for sure.
I would suggest selling those tires and getting 225/45R19 and 255/40R19. that pairing are 27" for both in diameter.

 

You got an incomplete answer because you ask an incomplete question. Giving the bolt pattern of your rims doesn't tell us much about their size. Could be a 12" wide rim with a 0 offset, or an 8" wide rim with +35 offset.

 

its a little vague, but i went with the assumption when he asked about coupe wheels, i was thinking about the OEM 19" coupe set. oem tires on those were 225/45R19 and 245/40R19, but i suggested 255/40R19 to make it exactly match the fornt at 27 in diameter.

there's a chance he could be refering to another set of wheels.

 

I would assume OEM coupe wheels as well, but coupe wheels are different on an x coupe vs RWD, and it's for an AWD sedan. Lots of uncertainties lol. If he got the staggered rims, he's going to destroy his diff.

 

as long as he has the same diameter sized tires front and rear, his awd system won't have an issues. its common now that X model g37 are running staggered since the 370z wheels are popular and cheap, and i know two people who are running the stagger 370z wheels in Atlanta for over a year on his awd sedan with no issues.

 

Yup, but if he got square wheels with those listed tire sizes, could be screwed. We wait for more info lol.

 

true, more information to help would be good.

 

Thank you all for the interest in helping me with what I asked, i want to apologize if my writing was off.
So i haven't bought anything yet, also the rim and tire specs I mentioned are those of a deal I found on facebook, so I wanted to know if those would work on a g37x sedan. As I had mentioned that i posted a few other 19inch questions previously. But the answers weren't really on point or exactly describing the size and diameter specs. Anyways I appreciate the help. I have decided to paint my 17inch rims and give up on the 19inch set up. Thank you all again

 

if you like the wheels and its at a very good price. the wheels (if they are teh exact oem ones from the coupes) and tires will physically fit without any problems; rubbing or anything. the existing tires will be your issue.
oem coupe wheels are: 19x8.5 +43 and 19x9.0 +45

chekc with the seller if those are the specs.

 

Apparently the standard 17inch wheels are better at keeping road noise lower compared to any bigger wheels. I think I'll keep them.

 

This is true. Though how much noise you experience will be determined on the height of your tire. At 19in you have limited choices. FYI moving forward.

 

Tire compound and tread design also makes a bigger difference. As an example, my 18s on my nitto winter tires made more noise than my yokohamas on my 20s. My summer 18s with Michelin's are quieter than both.

 

I don't know if this helps but I have a 2011 x sedan and it came with 19s from a q60 and I had no problems. You will some low profile tires I'm not sure what size where on mine.