"Air pushed threw the intercooler at 25 inches of pressure.
Stock Intercooler: 172 CFM
ST 185 RC air to water Intercooler: 230 CFM
Greddy 253 CFM
Spearco 320 CFM"
tested by chrisk on mr2oc
here is a good example of the POOR work done by ebay companies
http://www.toyotanation.com/forum/t114701.htmland a bar and plate is defenitly better then tube and fin i believe
btw wat car are you putting this on?