Originally Posted by remowgn
It is noticeable. I did the same switch as you with the RS2's. The 235/40's have visibly less sidewall than the 225/45's. It's not a lot, but I can definitely tell the difference. It was worth another "finger" of wheelwell gap- the 225/45's are a half inch taller. That being said, I much prefer my 235/40's. The difference in response and gearing is noticeable. They're wearing quite well, too... I was not aware of the compound difference. Interesting.
The 235/40's also have a minimum recommended wheel width of 8", but they work great on my 17x7.5 rotas. No squish.
...not the difference in SIZE.....any difference in compound of the tires...THAT is what I meant.
and IMO, the 235/40 is too short for the '06 WRX.....got 'em on my car now---3rd set....a 245/40 on an 8" wheel would be a much better choice.
I have 17x7.5's which are too small for a 245/40---and some 'wide' 235/40's...like the ones I have now------
and will review, here, shortly