Originally Posted By: dwcopple
how did adding coils and a injector regulator do THAT???
I'm no expert on such things, but my personal theory is that, for whatever reason, his very poorly tweaked engine was feeding vast amounts of unburned mixture down the exhaust and into the cat. Once there, the conditions were apparently right for explosive ignition of the mixture, which seems to have happened with enough force to tear apart the inside of the cat.
Well, most of us have seen or heard of the potentially destructive condition known as pre-ignition -- looks like there's also one that might be called post-ignition. . .
Originally Posted By: dwcopple
how did adding coils and a injector regulator do THAT???
from the comments it sounded like he messed up wiring. IF he added that AEM low imp box for the injectors and used the stock injectors for it, I have no idea what kind of adverse side effects that will cause..
I listened to the audio again a couple times. I love some of the recorded comments, particularly, "that dust can't be good for you..." spoken as they're all standing in a cloud of dirty exhaust and catalyst remains.