Hello everyone. Finally, after waiting a month,and investing a lot of money, the aftermarket parts dealer handed me the new RUSH slip on mufflers (2 inches baffles) for my Heritage 2005. I had them installed. Gee I liked their sound. Previously, the HD dealer had calibrated the ECM for high-flow Screaming Eagle air filter and slip on mufflers HD part No. 80375-00 but I did not like their sound nor the performance. My question is, should I make a new calibration for RUSH mufflers. Thanks in advance.