K&N Replacement Air Filters

K&N replacement air filters for the Nissan 350Z are designed to increase horsepower and acceleration while providing excellent filtration. K&N air filters fit directly into the factory air box of the 350Z making them simple performance add-ons.

2003, 2004, 2005 and 2006 Nissan 350Z models gain a lifetime of performance from K&N's 33-2031-2. K&N air filters are backed by a million mile limited warranty and will be the last air filters your 350Z will ever need. Only one of this part number is required.

Link below to applications that this filter fits;

http://www.knfilters.com/search/applications.aspx?Prod=33-2031-2

There is a different part number for the 2007 2008 350z K&N Air Filter (33-2399).