Ruger
FRF Addict
I seriously was getting around 10.5 to 11 mpg doing my everyday driving routine, and with the CAI and 5Star Tune I've been getting 12 to 12.5 mpg.
It might not be a lot but it adds up, an extra 25 to 30 miles per tank still goes a long way. Mind you I'm NOT driving like a Grandma so I could get better. I do a lot of stop light to stop light and idling driving.
I get 15 mph in town with nothing more than an K&N dropo-in filter. Please save yourself some disappointment and a lot of money, and view the advertising hype you read with a very jaundiced eye. There are any number of manufacturers that will sell you cold air intake systems that suck hot air from the engine compartment, intake spacers that do absolutely nothing, etc. Many will tout dyno runs that are all done with the hood open. All intake systems are cold air systems with the hood open, but most of us don't drive that way. And a dyno run tells you absolutely nothing about fuel economy.
It's a big honking performance oriented engine in a 6000 pound vehicle that's as aerodynamic as a brick. Realistically your best economy device is a well controlled right foot.