You are chasing dyno queen numbers (single map is safer for extreme power), or you can’t find a reputable tuner to build proper map slots.
You daily your swapped or modified EDC15 car, want hidden security, or tow/haul with the same vehicle. edc15 multimap
80% of Multimap quality is the tuner. Lazy tuners copy-paste the main map with minor boost changes. A good Multimap recalibrates smoke maps, IQ limiters, N75 duty cycle, and SOI per slot. Verify your tuner is modifying all relevant axes, not just “maximum fuel.” You are chasing dyno queen numbers (single map