Is there any way to tell if the Banks tune was uploaded into your ECM?
The used unit I bought has the full Banks Power Pack (intake and exhaust) installed on it. When going through the material in the owners kit I found the Banks info, including a manual on the Otto-Mind, but no device to load/unload the tune. The previous owner said the Banks setup was put on by the original owner, and he never saw a tuner when he bought the unit (at MHSRV) in 2008.
All I have in comparison are test drives in two other similar length coaches, both with the same powertrain (3-valve V-10 and 5 speed TorqShift). The Winnie seems to shift at a lower RPM and doesn't "wind out" like the others did when trying to accelerate to highway speeds.