My car is 2000 Honda Accord (4 cyl) and I plan to use 18" rim, will 225/40/18 tire fits on my car without doing any modification??

TIA

that is correct tire size for 18" wheels.

couple question to you;
is your car dropped? if yes, how low?
what offset 18" rims will have?

i asked those question because those things determine if you need to make moddification to fender or not.

I haven't dropped my car yet 'cause I want to see how much clearance there is before decide how low I should drop.

Another question: Any good shop in southern Cali if I decide to drop my car and usually how much if using coilover and camber kit?

Thanks