what kind of driving do you do that tears a hole thru the engine like that???
I figured there had to be an answer like this, thanks very cool to knowHe said that he sucked up some water. CAI's that are near the ground (like the original TRD) can suck water into the engine if you drive through enough water. Since water doesn't compress, when the piston comes up on a cylinder full of water things break (hydrolock). AEM makes a bypass valve to go inline on a cai in case the end is submerged. They have a video of a car where they stick the end of the cai in a bucket of water to show that the bypass works and it doesn't suck water.