I am finally getting around to putting on my Aero muffler here. Hopefully in about a week or so I will be able to tell the results from mpg gain. And about the chips, a guy in my neighborhood used a Superchip programmer on his 03 2500 Hemi and he noticed about a 1-2 mpg increase on the freeway, but nothing for driving around town.
Edit: results from the Aero muffler: 2mpg increase, louder(much, but I have no resonators), and can feel a bit of a power increase.
Edit: results from the Aero muffler: 2mpg increase, louder(much, but I have no resonators), and can feel a bit of a power increase.
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