I have an LCR with a BAM engine. It had a Custom Code stage 1 map. I sold it to a mate who added a filter, TIP, & full turbo back system including decat. He was advised to get a stage 2 map even without the FMIC being added as it would write out the sensor with it being a decat. I bought it back off him, added the FMIC and now want to optimise the power with a custom stage 2 map from a reputable company. Ive been told by Awesome GTI stage 2 ,maps are all generic and the ecu will alter itself after a few weeks of driving to take into account the FMIC and the altered lag/boost/air etc. Im not sure this is the case, any tuners can enlighten me here?