This product is made out of top quality stainless steel. It looks awesome and sounds awesome. It would be nice if it came with a gasket but it doesn’t. Mine also came without a flex joint in it, so it doesn’t look like the one in the picture on the website for some reason. It’s pretty expensive but my goal was to lose some weight and also get rid of the exhaust heat that these engines seem to generate, so overall, i’m happy but I am a little worried about it cracking without the flex joint in the middle. I guess time will tell.