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Ford was first out with the variable geometry vanes in the turbo with the introduction of the 2003 6.0L diesel. GM added that feature a few years later. Dodge was last, adding it with the intro of the 6.7L in early 2007. I am not sure why Banks does not offer a similar exhaust brake design for the Ford. Perhaps it is because Ford says adding an exhaust brake will void the engine warranty. Or, at least, that's what they said when I had the 2003 and 2005 Fords.
I remember from my Fords and reading about how the tow/haul and VGT features work, when off throttle, the vanes in the turbo close to provide some backpressure to aid in slowing down. That seems to be the same as what the Banks system does for the GM. Or, if GM's tow/haul and VGT do the same as Ford's, what does the Banks do differently?
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