|
I can't comment on power, because I am stock. But, I can give my $0.02 on the tires.
I have 245/35/18 MPSS on 18x8. I had 245/40/17 on 17x7.5.
Tread width 245/40/17 MPSS = 8.5
Tread width 245/35/18 MPSS = 9.2
A considerable difference.
The 17's looked square. The 18's bulge slightly.
I also have the 245/35/18 on a 18x9. Looks perfect. slightly stretched.
I don't believe that you are overtiring your car. I can still spin my tires.
|