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H&S Mini Maxx for my 2015 6.7

518 Views 9 Replies 3 Participants Last post by  K_Harrington
Let me start by saying my name is Kenneth and I’m from good ole Louisiana. I’m new to the site and been trying to figure out how to update/fix the mini maxx I just got yesterday. When I plugged it up it said it was still linked to the previous truck so I paid the $50 to get it unlinked. I pressed the selection for my 2015 and it did it. Then I clicked the the update firmware and crap and says it’s unable to do things. I’m trying to figure out the update I can download and put on my SD card to where I can get this mini maxx working.

It would be greatly appreciated if someone can point me in the right direction and give me the info to get this mini maxx updated to where i can set the tune and delete my dpf and straight pipe my truck and get better mpg!


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Welcome to the forum.

Unfortunately you’re likely at a dead end. The EPA pushed H&S out of business years ago and there’s no support for the MiniMaxx at all. You will probably be better off finding a dealer that will sell you an EZ Link. Search the forum and you’ll find Canadian dealers who are selling to people in the US.

Edit: I tried opening the link on your MiniMaxx and it won’t open so I started searching and found this:

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Good luck, man. I’ve got a MiniMaxx and it’s been installed now for about five years. I’m scared to death to touch it and brick my truck. I’m not sure what version I have to be honest with you. I’ve never really cared to update it. I like it the way it is.
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I was looking at my tuner and I can’t find an “about” tab that would give that info. I’d like to know what version mine is now. 😂🤣😂
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