ok Im not sure if this is PFC specific or maybe more a result of the midpipe. I bought the car with both so I can't tell

when I let off the throttle after light load i get a backfire.
It seems to be when I let off the peddal at 2-2.5K as soon as I let off it backfires. I would like to tune this out anyone else tried eliminating this?

I don't mind some back fireing. I actually feel it gives the car character. I just want to tune it out at 2-2.5K since that is usualy when Im going slow near my house.