Big Joes fuelshot will sort it out.
I have the Vance and Hines bigshot staggereds and no decel popping with mine it runs great all the time.
If you like tuning an modding etc with the tune of ya bike get the TTS but if you just want it to run right with no hassles get the fuelshot from Big Joes choppers.
It'll run sweet.

Hi Rocka, I put a Thundermax on my 08 Heritage and Scotty was kind enough to write and install a map, I found it running a bit rough and pinging under severe load, I wrote to Scotty who immediately wrote a tamer map, but then, prior to installing this new map,,,, daaaa,,, the penny dropped,,, I was running on 95 octane, and so I then filled with Shell V-power,(98 octane) and bloody hell she flies now!!! Scotty is around genius level,, and certainly knows his stuff, I suggest that you send him a PM Rocka, he certainly is helpful.....j