I gained about 60lb doing a major upgrade on my 340. One single box that wasn't even hooked up (old inverter) was 11lb by itself.
I'll going to ask for the history on this one. 250 over factory weight seems fat - I'm guessing I might find a typo. After my upgrade we did a reweigh, and I found a typo right away in the signed W&B that they put in my logs.
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