what year did EGRS , DPF's, DEF etc..show up on DP's
In other words when were the last good non-emission diesel DPs made. I have a 2008 RAM 6.7 with it and I believe it was the first year so I assume a similar time frame for DPs?
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2011 seemed to be the last Winnies we looked at (freightliner/8.9 ISL) that were free of DEF.
