High Performance K&N Cold Air Intake Kit: Increase Horsepower for 1999-2004 Ford (F250 SuperDuty, F350 SuperDuty, Excursion) 5.4L V8, 57-2525-2: 50-State Legal & Compatible Review

Easy installation with clear instructions, comes with dyno before and after car with the same engine, looks and sounds amazing and most importantly I can feel the difference in performance! Got rid of the sluggish start, slightly easier in the mountains. 10/10 worth the investment.

This is my second experience with this wonderful brand. I installed it on my 2002 F350. Installation was easy thanks to the clear and thoughtful instructions that came with the kit. It takes me about 2 hours but it's at a relaxed pace with my kids. After installation, you will immediately feel the increased engine thrust! the engine sounds bad too.

Great air intake! I had one of the $100 on my old truck. It was good but nothing special. The filter that comes with the air intake lets through a lot of pollen, which is not very good. I fitted this air intake to my new truck and it has exceeded all of my expectations. We'll be worth the money. very pleasant noise when downshifting. I haven't tried checking gas mileage with it, but I imagine it would be an improvement, especially with my Gibson exhaust. very easy to install. One of the clamps…