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That is an SCT tuner. Not sure of the model but the thing is married. If you got it with YOUR NEW TO YOU TRUCK, then it might be married to your ECU and would be very much be worth keeping. If not married to your truck, would cost $150 for SCT to un-marry it so it could be used with your truck. One point that needs making; the older SCT tuners had the ability to program the ECU to ignore an EGR so if there has been an EGR delete, it may have been used to keep a check engine light off your dash. If you get a new one, the latest software in almost all tuners doesn't allow for the ignoring of an EGR delete so you will get check engine light.

Is it worth keeping? Depends on whether it is married to your truck or not. If you get a new one, the EGR delete issue comes into play.
 
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