Before I get to the rest Yes I know I need a tuner/dyno/fuelpack or something but needed to put this out there.

103 Fat Bob with 2-2 big radius and standard air cleaner popping on decel, OK i get it.

Put the stage 1 SE air intake on expecting it to sound worse than what it was and had no difference at all.

Even though the dealers and mechs say its ok with just exhausts done you only HAVE to get a tuner when you do pipes and Air intake I still wonder if im at the same risk with just pipes done.

Additional to that does anybody know the truth about stock ECM recalibration for standard stage 1. ie no additional tuner just Harley flash on stock ECM????