This K&N Cold Air In-take kit for the Mazda 3 requires no modifications, it uses the original mounting points and requires no drilling, no breaking. Simply remove the original air filter box and drop in - Its that simple.

Part 69-6013TTK Product Specifications

Estimated Horsepower Gain: 6.67 HP @ 5604 RPM
Replacement Filter: RU-4960XD
System Type: Cold-Air Intake System
Intake Pipe Color / Finish: Textured Black
Weight: 9.3 lb (4.2 kg)

Product Box Length: 20.25 in (514 mm)
Product Box Width: 12.25 in (311 mm)
Product Box Height: 12.5 in (318 mm)

K&N 69-6013TTK fits the following:
2012 MAZDA 3 2.5L L4 F/I - All
2011 MAZDA 3 2.5L L4 F/I - All
2010 MAZDA 3 2.5L L4 F/I - All

Also available - K&N Performance Oil Filters, For 2.5L Mazda 3
HP-1002 Oil Filter