Would I need to recalibrate a 2009 Harley Davidson Fatboy if I drilled out my baffles?

Josh

New member
Wondering if I did this, which would change the exhaust, if I would need to get the bike recalibrated. I'm wanting a little bit more sound out of my bike as the reason for possibly doing it. Is there any chance that doing this could have negative effects on my bike? Thanks
 
I did this on my 07 Fatboy before I purchased my V & H side shots. It increases the rumble a little bit and its free. My Fatboy was a little lean from the factory but drilling out the baffles did not affect performance at all.
 
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