If the tires are new you'll be OK for a while but once the rears wear more than the front you'll have a diameter variance over 1% which can cause issues at higher speeds w/ your AWD system.
A better plan would be to put the 245s on the front (ditch the 225s) and put 275/35/19s on the back, that will put your variance at 0.52%, and if those 245s are used your variance will be even better.

 

Thanks a lot. I'm also looking at a set of M45 19 inch wheels. I think they look great on the G. They would bolt right on with no issues right? I don't think the M came with a staggered set up.

 

Those will work well, no stagger and 8.5" width, they have conservative offsets so you may want spacers to flush the tires a bit better. I'd run 245/40/19s or 255/40/19s all around.

 

So,
F: 245/40
R: 255/40
will work?

(Suck at tire sizing if you couldn't tell)

 

I was talking about those non-staggered M wheels that the previous poster bought)
With your staggered coupe 19s it would be best to run one of the following combos~
235/40/19F & 265/35/19R
235/40/19F & 275/35/19R
245/40/19F & 275/35/19R
First two combos are best diameter-wise but the 235 front tire isn't as widely available so it depends what tire brand/model you're after.

 

OK thanks, was thinking 275 on 9.0" wide wheels might look "ballooned" out? Would this concern you at all?

 

A 275/35/19 "recommended rim range" is 9 to 10.5", so it's not ideal and would be a slight "pinch" mount, so rolling of the sidewall under hard corning will occur. IMO the 235/265 would be the way to go if you can find the 235/40/19 in the tire you want
There's one other combo worth considering for a bit taller sidewall, a 235/45/19 & 265/40/19

 

https://www.myg37.com/forums/wheels-...ml#post3735286

 

Could not imagine a better post, thank you sir

 

No problem man!

But the OP needs the thanks I just found it while searching around.

 

guys, I need help!

got my new ipl wheels installed!
q60 ipl wheels on my 12 sedan. car looks okay but my car drives like a boat.. handling is horrible!! tpms light is on....
The car handles like a boat and i feel like its going out of control if i change lanes at around 70 mph on flat highway.
since my car is not dropped with 19inch wheels its a bit higher on wheels, gap between wheel and body is about 2 inches (3 fingers lol)

i will goto warren henry miami today to have it looked at.. Please help!
Tires:
bridgestone potenza
225/45/19 FRONT
245/40/19 REAR
Tires have slightly uneven camber wear on rear wheels.

i will drop my car later, but i need to fix this boat handling issue..

 

did you use OEM "Mag Seat" bolts?

 

umm.. i am not sure.. i used the same bolts that came out from my non-sports wheels.

 

Can someone confirm the seat on the IPL wheels.. you should double check the lugs.. and the wheels' seat as a precaution

also did the hubs (wheel/disk) fit flush against each other?

 

i did not install them, I am complete noob when it comes to wheels :/
I had them done at a shop. i told them to just replace my old one with these new tires..
I have seen pictures of people who have done this extremely cleanly. I talked to the infiniti tech support today and they couldn't tell why I am getting TPMS warning :/ they should be compatible since they are infiniti and I am sure I got genuine ipl wheels with potenza tires.