Originally Posted by Ænema
You're fine to drive around with cat ineffeciency codes until you can get the AP installed. Once the AP is installed any of the OTS stage 2 or stage 2+ maps will get rid of the CEL. Using ATR you can also disable the OBD2 readyness checks for any of the maps if you want.
COBBPowered,WedgeTuned,Spec2+clutch&Alum.flywheel, Wavetrac diff, lockdown kit, DCI, Forge DV's, AR catless DP's, AA Race FMIC, M3 links & Sways, 19' BBS LM's wrapped in PSS, ECS 2 piece cross drilled/slotted rotors, HPS 5.0 pads, M3 Spoiler, AC roof Spoiler, Aero Lip, Vorsteiner Diffuser, m3 sides, Tinted, And One Happy BMW Driver.