COBB Stage 1+ SF Power Package 2015-2021 WRXUnlock the power of your 2015 2021 Subaru WRX with the COBB Stage 1+ SF Power Package. A custom Accessport V3 and SF Intake System are included to deliver improved air flow and increased performance potential. The air box is constructed of black powder coated aluminum and accepts air directed from the factory air scoop, filtering it through a larger pre oiled filter and to the velocity stack MAF housing. Wire reinforced black silicone couplers ensure