If you can get reattachment which is always the goal, then you can see a significant reduction in CDA. What the trailer does is it affords a little more time lengthwise to get some reattachment of the flow.
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2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle
currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears
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