Originally Posted by HondaGoneRogue
I wonder what's so different between the m's and non-m's hardware wise? I'll have to check realoem.
It could be in the 1M's software. I bet in all cases the cars were in M mode... sharper throttle response. The throttle plate opens and closes faster than ssay in a 135i or in normal (1M) mode. So when you jump off the throttle at high boost (low to mid rpms with over boost!) the pressure shock wave takes out the weakest link - being the charge pipe. Just a guess though.