mine is an older H&S, no code free. i use the edge to clear codes. a little bit better millage with the dpf gone, even more once the egr fell off and the egt's dropped down to where my 5.9 is running.
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'04.5 3500DRW Laramie, Edge EZ, AFE Stage II, 4" MBRP, Webasto heater and some other toys
'07.5 3500SRW Laramie, mostly stock
