Volant Universal Pro5 Air Filter - 7.5in x 4.75in x 5.0in w/ 6.0in Flange ID Valve Cover B 2005-2006 Subaru Outback XT

B 2005-2006 Subaru Outback XT 2005-2009 Subaru Outback XT Limited 2015-2017 Subaru WRX STI Base 2015 Subaru WRX STI Launch Edition 2015-2017 Subaru WRX STI Limited 2016 Subaru WRX STI Series

Necessary to use Radium fuel rail 20-0447

Three general purpose outputs for nitrous control

This Proton fly by wire system includes jetting for 35HP

This  significantly reduces the transfer of heat from the head to the intake and incoming air giving you more power

Volant Universal Pro5 Air Filter - 7.5in x 4.75in x 5.0in w/ 6.0in Flange ID Valve Cover B 2005-2006 Subaru Outback XTPRO 5 Filters: Volants high performance 5 layer air filters are made of the highest quality textiles, pleated between a top and bottom aluminum screen. Each filter comes pre oiled and ready for use. This design will allow the highest air flow rate possible and a very long filter life. Use Volants two stage cleaning kit to thoroughly clean and re oil the filter. We recommend cleaning the Pro filter only when very dirty or when you reach around 12,000