Hey guys I am looking for a chip that will just boost my mpg up just a little. Its for my grandfather he makes trips from tx to wy and just wanting a little upgrade but does not want to void his warrenty or big power. I dont have much exp with the 6.7 so I any help is appreciated

 

Check out the Edge Juice with Attitude. It has awesome built in safety features like not adding additional Fueling until the truck is up to operating temp. You can set defuel parameters to keep things well in check and also has a built in Turbo Timer.

 

can it be detected if you remove it and take it in to the shop

 

No, the only thing that will be there is the thermocoupler. It is a plugin module, not a downloader.

 

If the dealer digs deep enough they can find traces of a fueling box or programmer. They usually will not go to those lengths though..
The Juice w/ Attitude or BullyDog PMT are the power adders of choice right now for 6.7s. The MP8 is kind of popular too....

Many people are patiently, and impatiently, awaiting the release of the 6.7 version of the SMARTY. There is no release date yet for that....