I took one of the resonators off my car the other week. NOT THE MUFFLER [lunch box delete] which people have been confusing with the resonators, makes the car sound more like a rally car but dont do it [unless thats what your looking for] . Took out the resonator right behind the muffler and it sounds AWESOME not saying to go ahead and do it but you can deff hear a sound difference. Sounds more sporty when you start the car and/or rev and is still somewhat quite when at stand still and thats what i was looking for.. 2011 Focus SES
"I drive fast because my car tells me to"