Sitting on 5th Street next to Big O Tires, EZ Smog does its best to be, well, easy. A customer pulls into the parking spot in front of the shop for a smog check, and then after stepping in and showing the car's registration and filling out some basic information on a computer screen, they're done. This shop also has it worked out so you pay a flat $75 (for most cars) with no hidden fee for the certificate.