I think you are talking about the Turbo 3000D Vada. There's lots of people who say it's a great thing and works as stated. There's a lot of others who say it didn't work for them. For a couple of hundred dollars if it works it's worth it.
Leo Bricker, 73's K5LDB, OOIDA 677319
Owner, Panther trucks 4958, 5447
Highway Watch Participant, Truckerbuddy
EO Forum Moderator
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Support the entire Constitution, not just the parts you like.