K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 1997-2011 Ford/Mercury/Mazda (Ranger, Explorer, Mountaineer, B2300, B3000, B4000), 33-2106-1

Just wanted to drop a line to say that my K&N air filter for my '98 Ford Ranger with the 4.0 liter engine has noticeably improved my horse power and has improved my mpg by two giving me an extra 30 miles on a tank of fuel. Thanks! Now, where do I get one for my boat?

I writing now what I should have written years ago.  I came to the website to look at the iformation offered as I want to put in a K&N air filter in a Ford Expedition I want to buy.  Years ago I bought a new 2000 Ford Explorer with a V6 engine and while on vaction in the high Sierras with my new Ford which was fully loaded with gear and family, I clearly recall how my Explorer performed.  At around 4,000 feet I laid on the gas pedle pretty hard for more than a half mile to build up speed as the grade up the road gets pretty steep up to our destination of just over 9,000 feet. Within less than 5 minutes I had the gas pedle floored and was just barely doing 50 mph.  By the next year I had changed out the air filter and exhaust. When we went up that same road I had to stop to pull over so that my wife could get my daughter a bottle as her ears were hurting her.  I thought all my speed was gone and we have even more gear then last year.  Well thanks to swapping out my filters and exhaust I was able to get up to 65 mph and even my wife was surprised and noticed the difference.  But the best was the increase in the over all mpg I got out of each tank.  My log showed that I was filling up at around 335 miles per tank and after I was filling up at around 360 miles per tank. After just over 10 years of ownership and over 166,000 miles not only have I recouped what money I paid for the filter and exhaust but have probably recouped it 5 times over. When you add that my engine has never had to be touched by a mechanic I would say with the help of the K&N air filter I got my monies worth.  Thanks guys for a great product, I will be putting one in when I purchase a Ford Expedition.