16 inch 0R 17 inch MR8 rims?

[Fasttech]

I want my car to be still fast, even though I going to put rims
I wonder which one would be better to keep the car moving quick
or the same.
Will my car move slower if I put 17 inch rims on or would the performance be the same?

Would 16 be the better choose rims for stock performance?

[stephen7983]

I want my car to be still fast, even though I going to put rims
I wonder which one would be better to keep the car moving quick
or the same.
Will my car move slower if I put 17 inch rims on or would the performance be the same?

Would 16 be the better choose rims for stock performance?

Don't worry too much on the size of your wheels. In theory, for your car to still be the same speed or faster make sure the rims you choose weight either the same as your stock rims or lighter than your stock rims. It doesn't really matter which size you choose just as long as rims don't weight too much. However, if you look in the bright side, with bigger rims (i.e. 17, 18, 19 inch..) you tend to get better handling, and of course it looks nicer than stock rims.