Just installed a AFE air filter system { part # 54-11622 } on my 2009 F15o with 5.4L engine. The company makes a very high quality kit with ALL needed parts & hardware plus an allen wrench and torque's head apex for installation . A complete cleaning and re-oiling kit is also included along with very clear { with pictures } step by step instruction sheet . Entire installation took a little over an hour and really cleaned up the engine compartment , sounds much better { intake noise IS NOT loud and obnoxious } and now along with the cat-back exhaust the engine can breathe . No check engine warning lights came on, and the truck " feels " like a slight acceleration improvement . Its too early to tell about gas mileage , but was getting 19.0-19.8 mpg before the install with a 3:55 rear ? Look real hard at this system for quality, easy install and priced in the $250 range depending on where bought ? Highly recommended
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AFE air intake for 2009 5.4L F150's
