e30

Airflows test of stock airbox paired with upgraded inlet elbow.

stock HPFP stage 2 EQT 93

Car has intake inlets chargepipe downpipe fmic 5" mhd stage2+ e30 v8.1... since i flash v8.1 mostly in 3rd gear pull i get half engine light and code 30fe and 3100 which is overboost.. previously i was using v7.1 e25 and didnt get that code..please help me ...