recently had my car dyno tuned, and now i have 2 CELs.
Engine mods:

APS DR500
APS CAI
APS BOV
VF30
STI injectors
Utec
Helix TBE
Helix Upp

my CELs:
P0301 Cylinder 1 misfire detected
P0172 Fuel trim malfunction (A/F too rich)

any input on what my issues could be?

if its too rich... it is too rich... This could cause a misfire. What is your target a/f under boost?