i want to get some spacers for my 19" oems and i was thinking if i could go 30mm spacers all around.. would i be able to do it without more than a rear fender roll? and will it look good? has anyone done spacers this wide on the stockers before? TIA

please do a search regarding tire sizing... some guys have put up to a 305 on the front.
take your tire size and add 30 to it...
ie if it's 225/xx/19 your 30mm spacer would stick out to be the equivalent size of a 255/xx/19

dude...wtf are talking about about...there is no way you can fit a 305 on the front without a widebody kit...295 maybe if you have some really really good offsets, wide wheels, and some serious stretch...but that's a pretty big maybe. This guy's question wasn't even about tire sizing...

OP....you'll be fine with 30mm, it might look weird if your not slammed. you will need to roll your fenders, but that's it.

Hey, i'm pretty much a lamen in car talk. I got an 03 Coupe and I want to put 20X8.5s in the front and 20X10s in the back. I'm buying the wheels and tires separately, so how wide can I go on the rear wheel tires. I want to go with the Toyo Proxes 4 295/30/20, but would I be able to just throw those on and know they'll fit without doing any further modifications? The place I'm buying the rims from say they do 295s all the time on g35 coupes with no problems, but i want a 2nd opinion.

Also, can you explain "really really good offsets, wide wheels, and some serious stretch" and "slammed" a little bit.

much appreciated