BMC 2020+ Porsche Macan Turbo 2.9TT / 2020+ Porsche Macan GTS 2.9TT Replacement Panel Air Filter (FB01098) Gloveworks Valve stems are micro polished

Valve stems are micro polished to allow for less oil retention on the stem

2009-2020 Nissan 370Z (Z34)

K&N also provides a variety of cold air intake systems

Includes all lines and fittings for a clean

2015-2020 WRX & STi

BMC 2020+ Porsche Macan Turbo 2.9TT / 2020+ Porsche Macan GTS 2.9TT Replacement Panel Air Filter (FB01098) Gloveworks Valve stems are micro polishedThe panel cylindrical air filter is commonly referred to as "replacement air filter". It is installed in the vehicle's original airbox to replace the OEM air filter. It is made of highly performing materials that allow an increased air flow combined with a more efficient filtration, guaranteeing containment of all impurities from as small as 7 microns (compared to OEM's 10 microns). This chart has a pure illustrative purpose and does not refer to the