If you are running a 15x5.5 wheel, you can run the P165-60r15 like this and it will look fine but the P135sr15 will look more stretched.
In the rear with 15x4.5 wheels, you can run the factor 165sr15 tire or the P185-60r15 like this. The 165sr15 will give you more height and the P185 will give you more tread patch on the ground for improved braking and grip.
On the 15x5.5's, the P185-60r15's will look nice, but a P205-65r15 like this will look meaty and extra aggressive.
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