Cobb Tuning SF Intake Replacement Filter - Subaru/Mazda BMW_F90 It is strongly recommended that

It is strongly recommended that you have this professionally installed

providing reliable connections to OEM fuel systems for aftermarket fuel components

meaning it maintains the outer size through the entire piston shaft

helping to stabilise intake temperature

Cobb Tuning SF Intake Replacement Filter - Subaru/Mazda BMW_F90 It is strongly recommended thatThe filter element that originally came with your SF Intake is cleanable and can be reused for the life of your car. However, should your filter element become damaged, this is the replacement part. Why? Filter for all Subaru (Excluding 15+ WRX) and MS3 SF Intake 712100,715100,724100,771500 Features: SF Intake Replacement Filter Washable Reusable Cotton Woven Media Increased Air Flow While Maintaining Filtering Efficiency Pre Oiled Long Life