I upgraded the stock ford intake system to a K&N cold air intake system which I ordered from a local AutoZone. This product has made a unbelievable increase in horsepower, torque and sound! Easy installation and cheap price of only $300.
There IS just a tinnnyyyy bit of a difference but since air is coming thru the front quick and easy u gotta go either catless and straight pipe or mid muffler resonator delete so air escapes quick and easy at the back
And tbh you hear the difference upon start In here with the thrumb which doesn't happen irl. You hear the difference when.youre driving and you hear a whistle at certain rpms and a growl at anything over 3000. A k&n definitely improves your ride.