Lowering your car will NOT cause your tires to rub. This is because your tires/wheels will still be within their original range of motion. If your car didn't rub before, it will not rub now.

I have used 225/50 on stock rims and 5mm spacers with no rubbing. I don't know if the wider wheel will make the 225s rub since tires do tend to spread out when mounted on wider wheels. I know that 205/50 on a 38mm offset, 15x7 wheel does not rub anywhere.

If you do decide on the 38mm offset, I have a set of hardly used 15x7 Kosei K1 Racing wheels I can sell you.

salaxx@hotmail.com