2 15's in a hatchback should be loud no matter what the brand is so with enough power and the right enclosure that's not a valid case at all. I've built pleanty of custom built to spec enclosures for a few different series audiobahn subs and honestly their subs are what you pay for. I dont like them period, if they spent as much time as the did with the motor structure and mechanics as the did on the chromes, and shinny sh*t, and making the subs look beefier then they really are they might be worth the $175.