well I gotta buy new tires for the z. I have a base model so it has the 17 inch rims.

the tires that it comes with stock are 225 50 17's in the front and 235 50 17's in the rear. I

I have one question, the tires that I want to buy only come in 225 45 17 and 235 45 17. will this make that big of a difference. much harsher ride more noise, but my biggest conscern is stability.

thanks for all the help.

 

The speedometer will read 103.65 MPH at 100 MPH.
The ride height will be 23.50mm lower.