Reviewed By Jeremiah o (Albany, CA) Reviewed for a 1991 Jeep Grand Wagoneer —4/5/2008 8:10 AM
I noticed the difference after i put the K&nN filter in my jeep. I have a lot more power and the gas mileage is a little better.
Reviewed By Dennis L (Wisconsin Rapids, WI) Reviewed for a 1994 Jeep Grand Cherokee —11/14/2013 6:34 PM
I needed to replace a very dirty air filter on my Jeep Grand Cherokee after buying it used. My gas mileage has tripled and I no longer have an engine light warning. Considering that the original EPA mileage rating was 16 mpg, and I'm getting 18 combined highway/city (about 21 highway), this was a great investment.
Reviewed By Brian D (Taylorville, IL) Reviewed for a 2015 Ford F-250 —4/21/2015 6:00 AM
Use one on my F350 diesel (factory) and bought aftermarket CAI for use on my F250 gas motor. Replaced filter with one of these and noticed .3 mpg improvement and easier engine "breathing". Believe it will easily pay for itself.