Help tunning my Grisso 2013 8V

Ok.
I was recently able to remap my bike using beetle codes for the type of exhaust I had.
The bike was running very lean and popping like crazy. After the reflash it runs better but it still pops on decelaration ?
Please if anyone has had this issue, please give me some advice.
I purchased the bike with the arrow slip on.
I am NOT looking for speed as much as low end torque.
Thank you all.
Any advise is more than appreciated.
Sal.
Miami.

Was the bike serviced and tuned correctly before it was remapped? What has been done to the throttlebodies? Do you have a dB killer installed in the pipe? Are the plug caps in good condition?