Reviewed By Tyler S (KALAMAZOO, MI) Reviewed for a 2011 Ford F-150 —7/18/2016 6:52 AM
Great quality and easily installed. The hardest part was removing the old stock ones! Cleared the bad sensor codes and they haven't come up again.
Reviewed By Scott J (SUWANEE, GA) Reviewed for a 2010 Ford Mustang —4/17/2015 1:24 PM
Purchased because a good friend of mine swears by these. He runs his 2014 HO Jeep on a 93 octane tune with regular, also swears it improved his mileage. I'm not one for snake oil but it does work. I can run mid-grade fuel with a 93 oct tune, previously even 93 fuel would periodically ping. I have also noticed 1.5 - 2.0 MPG better fuel economy. I am very pleased not to have to buy premium for daily driving.