I'd leave the side sill resonators alone. You're going to have a nice rumble at idle that will get quite a bit louder when the RPM's are up and you're on the gas hard. I'm not sure if your neighbors will hear it from 5 blocks away though
You won't get any check engine light due to that exhaust change. Deleting the cats will be louder, but you'd get an emissions code if the car was a '98 or newer.
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You won't get any check engine light due to that exhaust change. Deleting the cats will be louder, but you'd get an emissions code if the car was a '98 or newer.