Hey everyone,

I am sorta new to this site. I joined over 3 years ago when I had a 2wd 99 2500. I sold that truck about a year ago to get a car I had wanted since it came out, the 2003 Mustang Cobra. If you want to skip my story, go to the last paragraph for question about truck

I sold my truck with 256k miles on it and felt weird selling it, I always wondered if I did the right thing or not. The only problems I had with the truck was the transfer pump going out and the water pump. After selling the truck I kept having a weird feeling that I shouldn't have sold it, as I tried to get used to the creeks/clunks/issues with a Ford "performance" car with a fair amount of miles--90k.

The car was modded slightly be the previous owner and did show signs of fun/abuse in the drivetrain. I began modding it and also trying to fix problems common to those cars. Trial and error is expensive on those cars. After 3 seperate dyno runs, performance parts, and replacement stock parts, the total would be around $3000 in 10 months. While it made great power when I sold it, 535rwhp--520rwtq, I guess spending as much money as I did to fix it just took the fun out of it.

I then spotted a 2004 2wd 2500 that was the exact same color and options as my previous truck, the only difference being this one has the actual 2 extra rear doors. The 99 had the suicide style access doors. I could not pass up the chance to get back into a cummins, so I sold my Cobra and bought the truck. I could not be happier now, I get about the same or even better mileage now with the cummins, and fuel cost is only marginally more because the Cobra required premium gas. Plus I have the piece of mind driving a very reliable 5.9 cummins and don't have to be paranoid about something breaking or getting damaged like I did when I drove the Cobra. I was always literally worried about the Cobra getting the "head tick" or melting a piston cause of a high speed run, or my half shafts breaking, or the input shaft snapping on a launch.

And for anyone who read through all that, I had a simple question about the new truck. It's a 2004 2wd, auto, 3.73's, 4 door-short bed, and the 305hp version and totally stock. I have been trying to search and found a few results but wanted to pose this question. I am looking to get a little more MPG's out of the truck and adding HP is not a concern. I am not hauling or towing anything yet, may in the future but not right now. Are there any proven products that will increase fuel mileage, even just slightly? I am not looking for a miracle product that claims to give me 10 more mpg, but are there any air filters that help, or another type of product. Hand calculated I get around 19 right now, I would love to see it around 22 or possibly 23.