Reviewed By Travis G (Carterville, IL) Reviewed for a 2013 Nissan Altima —8/2/2015 9:39 AM
Installed this a few days before a long road trip and noticed a slight increase in gas mileage, averaged 33.5 mpg @ 70mph. Makes for more noticeable intake sound when you stand on the gas pedal, but nothing too obnoxious. Plan is to pair this with lightweight wheels and some custom exhaust work for maximum efficiency/mileage so this is a big part of it. Not a huge fan of the cost and the instructions were vague at some points but satisfied overall.