Anyone have any experience with the HKS GT-Type top mounted intercooler for the MY03 STi - core is 468.7mmX200mmX97mm compared to MY98 S-Type FMIC core which is 600mmX301mmX65mm. HKS claim GT-Type (bar and plate) core is more efficient than S-type (fin) and that the GT-Type TMIC is good for 400bhp application as per HKS demonstrator?