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i have a 2010 ultra and want to change the exhaust to vance and hines big shot duals. Can i just change the exhaust or do i have to add the power commander and upgrade the air intake?
No fuel adder needed for the slip-on mufflers. You may want to look into removing the CAT in the head pipe!!
You can remove the CAT in a few different ways; one is to dissect your stock head pipe and remove the CAT material or buy one of the three or four head pipes made for the 2010 with no CAT(s).
Only if you add more air to the mix will you need to get the fuel adder.
Note: even though you would not NEED the fuel adder without the added air intake, it would help reduce the lean condition that is engineered from the MOCO.
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