It makes a difference.
Reviewed By David W (Elkin, NC) Reviewed for a 1994 Ford Probe —3/7/2015 5:30 AM
Installed on a 1994 Ford Probe 2.5L the installation took about 30 minutes and the instructions were easy to follow, fool proof. All the parts fit my engine perfectly. The car is a bit more responsive but the big difference is on the highway where the engine seems to breathe a lot easier. I have seen a rise in MPG though but not enough to switch back to OEM.
K&N FIPK air intake
Reviewed By Jeremiah P (Elk Grove, CA) Reviewed for a 1995 Ford Probe —8/10/2012 11:12 AM
I'm loving the sound that I am getting between 3000 and 4500 RPM for my Probe GT. This is a good quality product, I've also seen about a 9 mile increase in the milage over an entire tank of gas so about .4 miles per gallon, which is not bad.
Reviewed By Brian T (FPO, AE) Reviewed for a 1994 Ford Probe —8/10/2007 7:48 AM
Cold air intake, took about 10 days to arrive in the mail and took less then 1 hrs to put on. Sounds great once it hits 3500RPM+ and you feel the boost in power. I am loving it. Can't wait until I get back to the states to put in on my hemi I left back there.