They will ....... unless you have a spare engineAlso, need to do apples to apples. Many people pushing their cars the hardest are probably using an aftermarket balancer. If you replaced all factory dampers with ATI, and removed those who modified their engines from the data would rhe results be the same? On of these threads it was brought up that the CJ had an ATI and not really many (or any) known cases of snout breakage. This is also a forum that is a very small subset of the mustang population. OEM has far more R&D than any aftermarket will ever do; however their performance metrics are different than many of us on this forum. I was scared of the ATI, now I have one and will on the build as well. Now both will break.