Thank you for the question!
Model number MMAB-WRX-15, the 2015+ Subaru WRX Airbox does not come with the filter, or intake piping. This item includes:
(1) Air Intake Box with Lid
(2) Protective edge strips
(3) M6 screws
(3) Nylon washers
Mishimoto Lifetime Warranty
If you are looking to purchase the entire system, we would suggest looking at model number MMAI-WRX-15, the 2015+ Subaru WRX Performance Air Intake. I have provided a link to this product page below.
Please feel free to contact us directly at firstname.lastname@example.org if you have any additional questions!