Throttle Body Spacer
It keeps your air a bit cooler entering intake. You can get one athttp://www.zzperformance.com/zzp/pro...ody_spacer.htm
They don't make vortexes, and vortexes are bad. You want the straightest most laminar airflow possible, These help seperate the TB from the upper intake/supercharger heat, and that keeps them cooler. Only useful on heavily modded engines.



