which resonator are you referring to? theres the one mentioned in the previous post and theres also an exhaust resonator which i believe is the one you are thinking of. removing the exhaust resonator is a very bad idea (its located behind the cat somewhere (not exactly sure where). when you buy an aftermarket catback, it comes with a resonator, in other words, you need it, if you take it out you car will sound like shit. it will be really loud and obnoxious, you will probablly get pulled over, and it will sound more ricey than anything else. please dont add to the rice population and remove your exhaust resonator!!!