hey all hopefully someone else had this issue or can help.
2000 M5 140k miles muffler and resonators removed
i started to notice a hesitation when accelerating hard then a massive loss of power feels like a moped motor under the hood exhaust went blatty then just completely stalled out ses...
I've had this problem for some time, the engine idle bounces from 500-1100 a few time then stalls this only happens when its warm and after a good run I have done the following:
1- replace all spark plugs
2- valve head gasket
3- cleaned MAF and o2 sensors (check MAF perfomance and it looks ok on...