Corsa + Headers is Loud but no drone, I wouldn't buy any other catback other than corsa. I've sat in and ridden in a bunch with Kooks to JBAs and they all droned (catback). Unfortunately the local PD in my town didn't appreciate my car nor the exhaust. Also the people in my neighborhood would call and file noise complaints when I leave early or come back late.
Also think a lot of people sleep on the Dynatech headers, had them on my last car and they were great.