i have a 2008 dodge ram 1500 sxt 5.7l hemi. i was wondering what is the best programmer that already has a fuel economy setting that you just push and you don't have to go changing things yourself?

 

The superchips set on 91 performance has shown the best fuel economy

 

do you know if it's the flashpaq, the cortex or the mileagexs?

 

the cortex has a 2 year warranty for your vehicle with it so theres no reason NOT to get it. the flashpaq and cortex are the exact same except for the warranty.
the XS is just that. for better MPG's. since you have an 08 get the 3865(flashpaq) or the 3950(cortex) and youll have tranny control also. that will also help you get better mileage.

 

is the cortex the only one that will be covered in the dodge's factory warranty if something happens?

 

um. no. it wont be covered under the dodge warranty. Superchips gives a warranty on it if you buy that programmer. If you dont turn you programming back to stock before you take it into the dealer they can and most likely will void the warranty. its like that with any programmer though. they say since you changed the programming of the ECM they cant control what it will do so nothing will be there fault.

 

Yeah definitely install factory tune before going to dealer!!!

 

only if your an original owner of the vehicle and have under x amount of miles....but yes superchips has the best known as of right now...and they would be 3865 or 3950(cortex)....

 

They all will increase MPG by making the tune more efficient. My Diablosport Predator increased my mileage as well without changing anything.

 

this is very true, I just like and push the superchips because all the other companies have gone and forgotten about the 3rd gen rams and moved on to newer models and superchips is the only one really coming out with new updates for them.