Wildman Goose Posted April 11, 2016 Report Share Posted April 11, 2016 (edited) Hi there. I know there are differing thoughts on these, but I installed one anyway. I really like it, but I get a strange harmonic sound when the engine is under load. I noticed it at highway speeds getting up to speed and also going up a hill at highway speeds. Anyone else had this issue? I almost forgot, I have a 2013 3.5 Limited. Edited April 11, 2016 by Wildman Goose Quote Link to comment Share on other sites More sharing options...
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