Whatever. Chemical.....yata yata. BS! This is the intake that was commonly known as the sidewinder. It was designed to either be used as an under-hood unit or a bottom breather. When the unit was shipped to me, that's what the guy told me it was. When I called Jim Hall and described it to a t, that is what he told me it was. He actually gave me very detailed instructions on how to cut the hole etc. It fit just like he said it should. The hammer was stuck in the water to show how shallow it was. My motor was totally stock, had never had nitrous and had about 20,000 miles on it. I was idling into a parking lot and it blew. Rods don't generally fly through the block at idle for no reason. Mr. Hall, you DID screen your calls, and you sir are the liar. Sure you have many happy customers, but you brush off and ignore the "lucky" few of us that had severe problems. All I asked is that your insurance company investigate it. I sent you pictures of the block, the water, and everything else I could think of. I even offered to have it torn down by a dealership at his expense and if hydrolock was not the cause, I was to pay for it. Ultimately it was my fault for using the piece of crap, but if he would have just admitted the problem and apologized I would have been happy. Just ask around on the vette forum, a few guys will chime in and tell you all about this guy. Oh well, hind sight is 20/20, but I guarantee you won't see anything made by Halltech on my car or any of my friends cars if I can prevent it.