noise limit

Hi everyone, (I have posted on the Australia page as well but thought I should post it here as well just in case) I have a completely stock 2017 Mustang GT and am planning on installing a roush axle-back exhaust (with stock resonator), however I have some worries on if it will be within the...

Hi everyone, I have a completely stock 2017 Mustang GT and am planning on installing a roush axle-back exhaust (with stock resonator), however I have some worries on if it will be within the 90db noise limit, if I am forced to get it tested by the Epa. I do sometimes like to go into the high...