elvin, by the way try to isolate the K & N filter tube from the hot air coming from the engine. I measure the acceleration without it and I was shocked. Changed only the sound and nothing else I closed my K & N filter in the original box and the filter worked better. As for multiram - noticeable increase in speeding up (speed?) Is within 3500RPM (MultiRam bottom) & 4500RPM (inside the intake manifold).
Resonator makes the engine accelerates better from the bottom of the RPM.
When mounted resonator, it is necessary to bypass the lower valve multiram. That's all, without any changes.
ECU does not need programming and mapping. He learns to adapt the air - fuel.