K&N Filters can help you to get the most performance out of your Mazda 6. K&N replacement air filters and performance air intakes allow high airflow to your engine while filtering out harmful contaminants.

Part 33-2279 Product Specifications
Height: 1 in (25 mm)
Outside Length: 12.188 in (310 mm)
Outside Width: 6.875 in (175 mm)
Weight: 0.97 lb (0.44 kg)

33-2279 Cross Reference
Mazda AJ5713Z409U
Mazda RF4F13240
Purolator A25525
FRAM CA9669
RYCO A1636
WIX 42885

K&N 33-2279 should fit the following NZ Cars:
Date 12.06-On "Means" Fits from December 2006-2015 On

The Official K&N website reads it fits the following USA Vehicles:
2012 MAZDA CX-7 2.5L L4 F/I - All  
2012 MAZDA CX-7 2.3L L4 F/I - All  
2011 MAZDA CX-7 2.5L L4 F/I - All  
2011 MAZDA CX-7 2.3L L4 F/I - All  
2010 MAZDA CX-7 2.5L L4 F/I - All  
2010 MAZDA CX-7 2.3L L4 F/I - All  
2009 MAZDA CX-7 2.3L L4 F/I - All  
2008 MAZDA CX-7 2.3L L4 F/I - All  
2008 MAZDA 6 3.0L V6 F/I - All  
2008 MAZDA 6 2.3L L4 F/I - Non-US  
2007 MAZDA MAZDASPEED6 2.3L L4 F/I - All  
2007 MAZDA CX-7 2.3L L4 F/I - All  
2007 MAZDA 6 3.0L V6 F/I - All  
2007 MAZDA 6 2.3L L4 F/I - Non-US  
2006 MAZDA MAZDASPEED6 2.3L L4 F/I - US  
2006 MAZDA 6 3.0L V6 F/I - All  
2005 MAZDA 6 3.0L V6 F/I - All  
2004 MAZDA 6 3.0L V6 F/I - All  
2003 MAZDA 6 3.0L V6 F/I - All