im trying to get this car to pop on decel found kfzwopt , nwem, dnwek, dnks, dnssl. right now i have a slight burble from exhaust but i need low lower minimum ignition timing and i just cant seem to find kfzwmn. using quite a few m3.82- m5.92  files and from what ive seen in the na files kfzwmn doesnt seem to exist ? any ideas willing to pay for a solution, time is money and im not looking for a free handout. original file attached
thanks,
marty