Go down to you local Autozone. Ask the manager (guys with grey shirts, never ask the red shirts anything, they are noobs!) aks if you can rummage through the air filters until you find one of similar dimensions. Then find what vehicle that fits. (The grey shirt can do that in the computer), once you find the vehicle it goes to, look for the K&N version.
Side gripe- not sure why you would bother with this. The 50-100$ you’ll pay for a k&n might gain 2-3hp AT THE FLYWHEEL. At best, with awd, there will be ZERO difference felt on the butt Dyno, and your modded 2018 will still be slower than the OEM 2018 that the elderly woman in the next lane. It’s all because of a little known secret called torque.