Engine - Reliability 2018 sti - IW STi Forum
· Joined Feb 7, 2015. ·. 1,208 Posts. #4 · Mar 1, 2018. Only show this user. the OEM STi intercooler is one of the best TMIC you can have. I am going to run mine with an EFR 7163 and plenty have ran it with GT30r's and above with little issue. The number 1 thing with these cars is the tune.