As the thread name implies, can you use the STI intercooler for a stage 3 setup for the UTEC for the WRX?... Of course with an up pipe... let me know your thoughts and tuning tips...
Hm, the STI intercooler really isn't that much bigger or more efficient than the WRX stocker...so I'd vote no. One look at the TXS, Perrin, APS, or other big TMIC and there's just no comparison.