The funny thing is that the stock airbox on 99+ cars isn't really that restrictive, Idk at what point it becomes a restriction but for a stock car it flows more than enough air.
Those numbers from K&N are fibbed, they say the same thing for almost every vehicle they make intakes for and they all have that same little graph on the box.......
I have said it once and I will say it again cooling the air before a heat pump is redundant, you're just heating it right back up, you need to cool the air after the blower to make any difference.

Sent from my Galaxy Far Far Away