ok, now im getting a bit annoyed. When i installed this i tightened the hell out of ALL of the screws. And it seems like every time i pop the hood to check the oil i find somthing missing. Wether its the screws for the heat shield, or velocity stack. Lucky they didnt end up in one of my tires. Its gotten to the point that i went to home depot and got all stainless steel phillps screws to replace the hex ones and havent had a problem since.