Hi there, I recently bought a 2010 FXDB new from the dealer. I bought a pair of V&H straightshot slip-ons mufflers for it, and was told by the dealer that i could install them without modifying my intake or the engines cpu. So i installed them and at first startup it was amazing; a nice, crisp sound with a definative 'bark' when i rolled the throttle. That was two weeks ago, and now it is sounding much more bland and almost stock until i roll really hard. Also, the power has declined gradually as well, and i noticed the response was lagging a bit too, any help with these symptoms would be great.. By the way, the temp outside has gotten warmer in the past week or so, and i've noticed the engine getting a lot hotter than it was before, but still not sure how that affects the sound coming outta the pipes or the power range.