I have a 2006 g35 coupe
Its time to get new tires....

my wheels default tire size are

225/40/19
245/40/19

here is the question...

i am getting a good deal on the falken tires - but since they only make 245/40/19... can i use them for all 4 wheels?

I am not asking for reviews on the falken tires - I would like to be advised on whether having 4 same tires will hurt the tread life, performance or anything on the car/tires.......

any help will be greatly greatly greatly apprecaited...

thanks.

Yes you can run 245/40 all around without it affecting the car.
-GP-

Thanks man....

can you guide me what the difference is between the two options?

The 245 has an extra 20mm of contact patch and is slightly taller, but the difference in overall height is nominal.
-GP-

Thanks GP

I disagree. Using a taller tire in the front will shift the balance of the car to the rear and raise the front of the car ~1/4" while also changing the circumference of the front wheel, which will again, also affect the performance. I recommend using a 245/35/19 in the front paired with a 245/40/19 or 255/40/19 rear, which Falken does make in the 452 lineup.

do they fit on the same wheels?

245/35/19 will fit fine on the front 19x8" OEM wheel and 245/40/19 and 255/40/19 will both fit fine on the 19x8.5" OEM rear wheel

Any advantages of going with the 255 in the rears?

Pros and cons?

no cons, more traction, more sidewall, and comfier ride.

I have 275's in the rear, 255's will be fine on OEM 19's.

see sig.

thanks need a buy new rear tires....soon. thanks for the input..

wont interfere if i got 25mm spacers in the rears would it? and the car is lowered?

depends how much your lowered. Best thing to do will be roll your fenders. If your not rubbing yet with your oem size then your back end isnt lowered enough to rub with 255's

COOL already got my fenders rolled because it was barely rubbing at first with the car lowered with the stock tires.