Not sure what people dont seem to understand. Ford and Mazda have been using CAI from the factory ok their performance cars for OVER A DECADE. All you guys that go buy a $100 CAI at autozone and slap it in are doing yourselves some serious harm. Just leave the stock air on there unless you plan to upgrade the turbos, the stock airbox can flow more than the stock turbos can pull. If you really wanna make a difference on your intake heat wrap the plastic parts or replace them with metal, but for the love of God don't go replace an 8"x14" square filter with a 5"x10" cone.
2010 SHO PP, axle back exhaust, 3 bar MAP, upgraded thermostat, iTSX tuner, 20" summer rims