Choi Smog Test-Only Center (No Ratings Yet)Loading... Open Monday to Saturday, 8:00 am – 4:00 pm. Closed on Sundays. A ten- to fifteen-minute smog test costs $40. Prices subject to change. City Center on 6thAroma CenterShatto Veterinary CenterStarbucks @ Aroma Center Posted in SERVICES and tagged automotive, Korean, smog test.