I went in to have my muffler deleted, and they guy at the counter assured me that they would remove the muffler and not touch the resonator or the catalytic converters. So when they call me to come pick up my car, the guy tells me that they realized the muffler was in the back, and then they cut out the resonator instead which i very much did not want them to do. They will also not answer their customer service phone line! Ridiculous. User's recommendation: Dont go!