Yeah from what I've seen so far. From videos don't like flowmaster. I'd say it is between borla and carven so far. But I will check out some of the others you mentioned.I'd definitely go full aftermarket then. Watch youtube videos to try and see what you like within your budget. Many options are out there. Carven, Magnaflow, AWE, Corsa, Flowmaster ( not a fan of personally) etc.