This is my first post, so bear with me. I have an 04 2500 d-max 20,000 on it. I am looking for any help to squeeze better mileage out of it. I have slowed WAY down. Will the intakes, chips etc... help me? If so what ones?? Thanks!!,

exhaust system like mbrp removing the cat helps and what size tires do u have on it that makes a difference to there's a few things to start with

Opening up your exhaust flow will help some as they are pretty backed up from the factory. I would pair that with a mild chip like the Edge EZ for best mileage gains.