I'm thinking about getting one of those K&N Filter tops when I get some headers and go ahead and convert my intake to a 14x3 setup and get some more air pumping through there. I'll have to sell my K&N CAI, but I think one of these would be much better. I think their website says it gives like 500 CFM more airflow than a traditional setup, but don't quote me on that. Should help out with some long tube headers.