I am trying to find some ways to get some better mpg's and maybe more power while still keeping warranty. (three turbos within a year, 2 within first 3 months) Will an aftermarket drop in filter increase mpg's and maybe responsiveness?

Thanks for all your info!

 

my buddy has the same rig as you 2007 6.9
whats your mileage?
whats your MPG?
the K&N filter is what he runs and it holds warranty
I DON'T LIKE THEM they pass to much dirt the best you can do is the good ole paper

 

I put a k & n in mine and didn't notice much better mileage, still getting about 16.5 to 17. How many miles are on it?

 

with all the emissions junk on their isnt much you can do for getting better mpg

 

Don't waste your money on a drop in filter. Look at a S&B or AFE ProDry

 

i got a banks, and i paid wayyyyyy too much

 

Almost 30000 miles on it. The newest turbo I have is the one that dodge just put out. Supposed to be redesigned. I get about 17-18 around town (35-55) and about 20-21 interstate (60-75). I had heard that the drop in would increase. Just trying to do some research.

 

I have used K&N drop in filters in the past, they do flow better, but not much difference in MPG. Main thing I noticed was less turbo lag. Driver technique is the best way to get better fuel mileage, eg keep your foot out of it.

 

Talking to some folks last night and heard that AEM or AFE would be the best drop in replacement. Found an AEM Dryflow around 75 at a local parts store. That gonna be a good replacement? More flow but not dust my "new" turbo?

 

I alternate between a K&N and an aFe. Both are dropped into a stock air box with a 4" hole cut in the bottom. The intake tube has been gutted as well. This combo has gotten me an extra 3/4 to 1 mpg on the highway. I run the K&N when pulling the trailer because the turbo whistle is excessive with the aFe. Other than this, the truck is stock and is getting 20 to 21.5 mpg on the highway, on cruise at 110 kph, in 2wd.