AAM s-line midpipe/axleback set up vs ark grip
 

Trying to find the least raspy/ drone for a dd I spend hours and hours a day behind the wheel. I also have berks Hfc installed - which one do you guys think will be the least raspy/drone free with berks HFC ? I wanted berks but they are no longer making it..

I have had both loved them both. I would say the AAM makes a little less drone and as for the sound with HFC I can get back to you once I install mine. One thing I like about the AAM is that its a little less flashy and is really quiet until you hit 3500 rpm or so, then is screams. I am adding z1 hfc's to see if I can make it a little louder and add a little grunt. Also for quality hands down goes to AAM.

Good luck!