I was out this weekend and may have found some added issues towards my slight lack of power issues I am throwing a bunch of codes

P013e, P0140, P0300, P0303 and P2261

Leads me to believe that the o2 sensor is bad but it's tuned and some of those codes are deleted.

mods: Dejon CAI and Hot side CP with hks Bov, Badmab cattless DP with Defouler TR8 IC, Muffler delete and HP tuned

Suggestions.......