We have a guy here in Kyiv with the same basic AF 1LT, the only difference is that he has the performance exhaust option. He has the same 7" basic head unit, but there are additional exhaust related options in there. I downloaded his car's tune with my MPVI3 and the NPP options are located in FSCM, as in v8.

What would it take additionally to retrofit an NPP exhaust in regular 1LT except for the FSCM and the valved exhaust itself? How exactly is the FSCM connected to ECM and valves? I'd appreciate any info

Thank you