K&N X-Stream Round Custom Top Assembly Filter - Red 12in ID 5.125in Inlet Dia 2.313in Height 2004-acura-nsx-esi9499529 This is the same aluminum

This is the same aluminum facing we use on our proven Floor & Tunnel shields

The air filters are located in the original air box spaces and are protected by heat shields which are designed to reduce intake air temperature and increase horsepower

This resulted in much lower Intake Air Temperatures (IATs) and that were just a few degrees over ambient

50 - Black Chromate (4 Pieces)

For use on -3 AN to -20 AN hose

K&N X-Stream Round Custom Top Assembly Filter - Red 12in ID 5.125in Inlet Dia 2.313in Height 2004-acura-nsx-esi9499529 This is the same aluminumNot only does the K&N XStream add filter area, it actually redirects airflow inside the filter to pull in more air through the side pleats for even greater performance efficiency. Cleanable and reusable, the XStream Air Flow Top filter delivers the best protection available for your engine. Installation Instructions Technical Bulletin Technical Bulletin