There is no need to modify KFZW or KFZW2.
This is what I do: KFTVSA --> 2.5s where I want, modify the lowest load line of KFZWOP1&2 -22degrees, KFZWMN -31, KFZWMS -96 from 4000rpm to 6000. You will get nice pops and bangs on overrun.
I was able to convert the bin today, the effect is much better, you have a plus from me
