Tuning

A stock bike with decel pop?
 
The stock map has the rev limit at 7000. What is it set to in the DNK tune?
 
I’m surprised you can hear popping with the mufflers and cat. The older R3 with TORs and cat bypass popped loudly on decel with the stock tune for that exhaust. My full Jardine exhaust was ridiculous. The popping is caused by a lean condition where the fuel ignites in the exhaust. This was a difficult problem to address because: 1) fueling at zero throttle under load is based on manifold pressure (MAP) - you can add fuel to the L tables but you have to know the range of rpm and MAP over which popping occurs; and 2) in closed loop, fueling tends to get leaned even more.
 
Maybe Nas6208 has a Vacuum or exhaust leak, My TFC had no decel pop until I installed Dave Platt exhaust, DNK says they have a tune for it, but now I'm wonder if it's worth it.