04.5cummins Posted September 7, 2011 Report Share Posted September 7, 2011 Hi all- If I add a new x pipe with high flow cats will I need to have my car re-programmed? 2010 Kind regards, Gary Quote Link to comment Share on other sites More sharing options...
mullens Posted September 7, 2011 Report Share Posted September 7, 2011 Nope. Quote Link to comment Share on other sites More sharing options...
lfleiva Posted October 18, 2011 Report Share Posted October 18, 2011 From where did you get the x-pipe? Quote Link to comment Share on other sites More sharing options...
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