Take the attention off max boost of 1.38bar for a while and look at the overall yellow boost curve and not the blue. Edit: Boost was maxed at less than 1.3bar-- refer yellow line.

Max boost was 1.28bar at 4250rpm and boost was dumped to 1.1bar by 6400rpm. Engine was running sweet.

AFRs were kept less than 11.2. Warick has found the sweet spot for the EJs over the last few tunes and will like to keep it at that, without causing damage to the engines.