if you're more of a DIY'er, buy a SEPST and the $45 cables. The program is now a free download from SE.

10 minutes messing with your decel enleanment tables, and you'll have no more decel pop.

 

I have the Screamin' Eagle slip-ons on my 2012 Heritage Softail. They were too quiet from the box, so I opened them up some by prying the 'tongue' to about 2/3 open. This allows more exhaust to flow directly through the pipes making it louder. At the same time it diverts some of the exhaust through the baffles. Now it sounds great. I also added a Screamin' Eagle air breather to get more air, installed Nightrider FL XIED 10s, and installed NGK Iridium plugs. Now the bike sounds and runs like a Harley should.