This intake is the least expensive model because the intake tube is made of roto-molded HDPE plastic, compared to power coated or bare aluminum. The K&N 57-2556 cold air intake arrived in a medium sized box, and included clear instructions and all hardware to install the intake. I actually love the sound of the intake whirring up, but some might not. The drawback to some with a cold air intake is that because the air intake baffle was removed, your engine will be louder. Notice how much sleeker and smaller it is. Improved engine air flow can not only increase horsepower, but can also improve fuel efficiency and lengthen engine life. Imagine your engine wearing a mask and now you’ve taken it off.
Here’s a photo of the gigantic factory intake box on my F-150.Ī cold air intake replaces this box with a shorter and larger diameter air intake tube and exposed air filter. Factory air intake boxes on most naturally aspirated trucks are large hunks of plastic that serve no real purpose except to drown out sound and get the engine to spec for the best mileage, but not necessarily the best performance. But I felt a difference with the K&N immediately! What is a Cold Air IntakeĪn engine that breathes better, performs better, so the adage goes. I love the sound of the Flowmaster, but I’m doubt it added anymore power to the vehicle, or if it did it was not measurable to me while driving. The only mod I’ve made is replacing the stock muffler with a Flowmaster Delta 50. Despite the big V8, I’ve always wanted a bit more power.
I never tow and it’s been treated well with oil changes and maintenance at regular intervals. My F-150 is the 5.4 Triton V8 and has 165,000 miles on it.
I’ve been seeking a power boost and better response on my 2008 Ford F-150, and wanted to find out if a K&N cold air intake was the answer. I’ve known about cold air intakes (CAI) for years, but I’ve never installed them on a vehicle I own, until now.
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