actually... it was alot different but now that i am putting 91 octain in my car i get 30 miles to gallon still as to where it was only around 25 with using 87 octaine gas i was getting pissed becasue my gas milage took a nose dive but since i got 91 its back to normal also... your car HAS absolutly no get up and go with 87 octaine 91 its hard to tell a difference between the wheels i think at 65 mph there is a 5 mph difference in your speed meaning your actually going 70 mph other than that i feel alot more bumps AKA low profile tires
the perelli tires are awesome although they are noisy ont eh pavement its cool i dont mind the noise i got my system going >

> but yes there is one more i felt a little increase of speed around 4k RPM like a little jump i guess it takes some to get the tires rolling anyhow i hope this helps >

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