I am now running the xoar 22x8 on my da-50 and a slim line wrap around muffler i think it is called, i also have the hyde soft mount and turning up 7800 and running really great, my friend is looking into getting the dl-50 and i would also use the hyde mount and the slimline muffler with that as well, i have heard nothing bad at all about the dl-50 and would like to when i can afford it try one myself.