Reviewed By Stephen H (Dayton, MD) Reviewed for a 2007 Pontiac Grand Prix —10/17/2007 3:33 AM
My second K&N air filter, this one for my Grand Prix GXP. My other one is in a 2004 Grand Am GT. There are over 40,000 miles on that filter without a problem. I had an immediate jump of over one more mile per gallon in the GXP. And it makes my wife and daughter happy because it doesn't contribute to landfills like other air filters do! Adding a K&N air filter should be one of the first things anyone does after purchasing a car.