A Donaldson 51" or running two magnaflows, a 30" and a 24"? I'm looking to cut the drone that my aero turbine gave me. I want a good sound with no drone and I don't want super loud. I already have the 30" magnaflow on the way and ordered it before I knew about donaldson. I can get a 24" magnaflow from a local shop for fairly cheap but I just want what is best for my needs. The donaldson I have to mail order and I want to take car of this soon as towing my boat is a pain with the drone. Thanks for the help guys.