Ok so I have to get some new tires and Im not sure how wide of a tire I can get with the stock evo 9 mr rims. If anyone knows that would be awesome thanks.

 

255

 

255/40 with a stiff sidewall.

 

ive ran. some falken azenis on the car year around. they are great in the summer. but not good if you drag race. the side walls are too stiff and thats not good if you like to launch the car, and the compound is not soft. in the winters. i have 245-45 and i have had 255-40 without issues. the wider ones look better. good luck

 

255/40 is closest to stock but 245/40 will make you faster if you only have a few mods

 

I run the 255/40 falken rt615's. 1.71 60'. Not SOO bad.

 

i am running 255 40 falken azenis on stock evo ix rims with no issues... did you even try typing 255 40 in a search? it brings up many topics on this issue which has been discussed many times before

 

255/40 is the best size. if you're lowered and try to run 245/45's and you take a turn too aggressively without your suspension set stiff enough, say goodbye to your fender lining...i know lol

also, 245/45 is too tall. 255/40 is pretty much perfect. no rubbing, no nothing.

 

Thanks for asking this question, i was wondering about it to

 

same here
thanks

 

i run Dunlop Z1 Start Specs 255/40ZR17 with no problems no rubbing

 

Just had 255/40 put on in replacement of my 245/45. There both RE01's so its a good comparison. I am definately happier with the way it feels when I push it in a turn. Turn in response is a tad less responsive but worth the stability. Car definatelty feels more stable and handles better. You can feel the suspension working harder and acceleration is a hair slower but nothing for me to regret it. I would go with a

 

turn in should be better with the 255/40 over the 245/45 because the sidewall is shorter and stiffer. 245/45 will roll over before a 255/40 will. 255 is stiffer, and therefore gives better turn in.

 

255/35 is pretty solid because its wide!

 

That's not correct, wider tires are heavier (rotating mass) especially on a 255
If I am not mistaken a 235/40 would be the fastest turn in ratio fori the OEM wheels
Once you go this wide weight starts to play a factor. I had both sizes and others agree that 255/40 are less responsive than 245/45.
This topic has been talked about in several threads the info. Is out there.