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| Orion Reflash System for Navistar Power Hungry Performance is the first in the industry to provide custom tuning for the 1998 to 2007 Navistar Medium Duty platform! If you have any questions or would like more information on Orion, please post here. |
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I have a 1999 4900 DT466 with an Allison (I believe the MD3060). It's got a dump bed on it. Anyone have experience out there with Orion on this combination, or insights into power levels through the Allison?
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