I switched the restrictive air box that was stock on my 2001 camaro ss and during the process, I had to remove my maft and throttle body. In the screen was bugs and other debris. This leads me to believe that the K&N may be letting not so good things into the LS1. And before you ask, I had the gasket and additional material to seal the filter. I think that I am going to try a holley filter and if that fails go back to stock air filters. Has anyone else had this experience with K&N air filters.