No the regular Crossfires do not have a resonator before the muffler. I am not sure why Borla puts one in their system for this car. As stated in some of the previous postings this system sounds okay at lower RPM's but when you get on it the exhaust sounds OEM. So again I think removing the resonator and installing a straight pipe to the muffler would be an improvement if a person is looking for a little more noise. I am gonna give it a go but probably not till next spring. Thanks for all the feedback.