need some tire size suggestion from you guys. hopefully going to discount tire tomorrow to put in an order for some Nitto 555s--....

puttng on some black FR500s 18x9/10s and mostly need some help on the rears.....what size are you guys running?

im getting 255/45-18s for the front and am completely up in the air for the rears....thinking either 275/40s, 285/35s, 285/40, or even 295/45....

also, will i have to make any changes to my tune with the larger tires, and if so how (i have SCT w/ b a m a tunes)

 

I vote for the 295/45.

When you load a tune it asks you if you want to change the parameters, select and then go the rev/mile and enter the number that is on nitto's website for that tire, the rear of course.

Search nitto's website for the rev/mile number.

 

i say 285,40 in the rear and 255,40 up front

 

i have 255/45 18 front and 285/40 in rear

http://www.bigcustomwheels.com/rt_specs.jsp?item=Wheel-Tire%20size%20comparer&showRim1=1&showTire 1=1&sw1=235&ar1=55&bd1=17&rd1=
17&rw1=8.0&et1=45&showRim2=1&showT ire2=1&sw2=295&ar2=40&bd2=18&rd2=1 8&rw2=10.0&et2=45&text1=&text2=

 

295x45x18 are over an inch taller than stock which is what I'm running. My speedo is off by almost 5% which is not that big a deal for me. I figure the next time I reload my tune I'll make the wheel rev adjustment. Stock my speedo was off, so now I think it's more accurate than it was.

 

are you lowered flapony?

 

Yes, Eibach Pro Kit