loud to one person is not so loud to the next...
i have ridden in svt with no resonator before and its not as loud as my zetec with no resonator and high flow muffler...and i have driven my zetec for a few hours at a time and it doesnt bother me...depends on the person
its all a matter of opinion...
removing the res will make it growl nicely under hard acceleration, gives it a nice aggressive sound...good luck in what you choose...