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K&N 57 Series FIPK Air Intake (50-State Legal) Part #57-2525-2 Customer Reviews
25 Customer Reviews
Reviewed by Shane M (Knoxville, TN) Reviewed for a 1999 Ford F-250 — Dec 23, 2014 5:31 AM
This upgrade looks a thousand times better than the stock air filter assembly. Installation was easy thanks to very detailed installation instructions. I have no idea if the performance has increased since I have never had the truck on a dyno but it has to breathe better now.
Reviewed by Marc S (Algonquin, IL) Reviewed for a 2004 Ford F-250 — Nov 14, 2013 5:53 AM
Unit easy to install and looks good.Installed it to improve performance on my 5.4 liter Ford truck, didn't see any improvement and at acceleration put out a noisy whistling noise that drove my dog nuts. Checked all connections and fittings all were ok, removed the kit and noise went away. Will be returning the kit.
Reviewed by David B (CHESTERFIELD, VA) — May 06, 2013 9:18 AM
Product shipped within 24 hours of ordering and was received within a few days. Well packaged and easy to install. Put it on two days before an 800 mile drive and had no issues with the product.
Reviewed by David J (South Chesterfield, VA) Reviewed for a 2004 Ford F-250 — Oct 27, 2012 4:12 AM
It went on easy, it took about 1 hr. haven't had it long but I can diffently tell the difference in power at highway speeds, it doesn't take as much pedal and it doesn't have to shift down to pass or pick up speed quickly. I wish I would have put it on sooner.
Reviewed by ANNETTE R V (APPLE VALLEY, CA) Reviewed for a 2003 Ford Excursion — Aug 17, 2012 10:11 AM
After a 1200 mi. trip all seems to be working well. Noticed a big difference in pickup off the line and a much better breathing for my excursion 5.4L triton. I had installed a superchip prior to the fipk and the combo is impressive about 40-50 more horsies depending on the fuel quality. I noticed lower rpm's at towing speeds and more torque up hills while towing. I have an old steel trailer and the extra power really helped in a wind storm. I would have liked clearer pic's in the manual.
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