OFFSET?
I am assuming you went with 18x8.75 +33mm correct??
Also, that wheel is going to have a GREAT concave to the rim. And being staggered, they are going to look HOT!!!!
So let me get this straight, you went with these in the rear and these in the front? If so, look at that concave for the rear.
I have a 93 accord and I have 16x7 in the front with 205/55, the rears are 16x8 and they have 225/50. That is a way bigger difference between my frontvsrear than yours, but it handles well in the twisties. But I dont think FWD, especially ones with a small wheel base, perform at their best with a staggered fitment. So you might notice the car not reacting the way you like in certain situations. This is from my experience.
BTW, 235/40R18 will have absolutely NO stretch on a 8.75" rim width. ZERO STRETCH. It is either stretched or not. And if you look at the data on tires, you will see that 235/40R18 rim width range is 8" - 9.5". Thank goodness you didn't go with 245. But depending on how low you are, you might rub in the back when you drive on certain roads because of a low offset PLUS wide rim PLUS wide tire. definitely rock the rears with NO spacers. I think they are going to poke out noticeably.
You are going to go from this

To more like this

Maybe not, but this I want to see for sure. So when you get everything installed. Take good pics to see fitment.