From the information that I have gathered. A subframe tearout will indefinitely happen when using a larger swaybar. When will it happen you ask? Right now, maybe tomrrrow, a couple of years, or a decade from today. Just like a tootsie pop, "The world may never know." With the ASR/Comptech brace, it will only prolong the inevitable. A stiffer spring rate will also add days, months or even years to the life of the subframe. Thus, the driving condition will effect the subframe tremendously. As stated, he heard a pop going at a forty-five degree angle up a driveway. As you will figure out, this will put a tremdous load on the subframe. Pot holes, speed bumps, and any other anti-speeding obsticles will contribute to the tear-out. There is no other way to be safe but there is a way to be prepared. Reinforce the subframe with either an ASR or a comptech kit. Stiffer spring rates will help. Put some money away for a rainy day. And good luck.