Leonel

I need to quiet down the exhaust on my87 NA a bit to please Jonnny Law , full Quiet Flow SFR exhaust with test pipe , right now the Cat is off the car and it is a little loud , Im debating about installing a resonator because I'm afraid it will resonate :-). My question is for those with similar exhaust, did the resonator created annoying vibrations/ noises ? Did it choke up the exhaust? Did it quiet down your exhaust enough ? Or will I be better off just installing the Cat Conv. back on?
Thanks