Join Date: Apr 2011
Location: Fredericksburg, VA
From what I've read and gathered from HD mechanics the auto-tuners can overwork the ECM and eventually kill it. The addition of the auto-tuner also voids the warranty in the event that it does overwork the ECM... Which means you're out of pocket for the ECM and flashing should it break. However, some of what I have read has been nothing but rave reviews for how it performs.
Personally, I went with the DynoJet PowerVision and a map from Jamie at Fuel Moto. That way if I have any kind of performance problem, I can just change the map and if the ECM goes out I shouldn't have a real warranty issue with that part.
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2011 FLTRU - Merlot Sunglo
JP 2-1-2, V&H Hi-Output, Stage 1, PowerVision