I used to have and Injen CAI
. When I decided to remove it I was left with a mangled ECU cooling tube.
My temp fix was to join the pieces back together and route it out under the headlight. I ran it like that through all of July and August with temperatures reaching well into the 90s and even 100 on a few days. My ECU seems to have survived. I have since replaced the ECU cooling tube with a new from the Toyota dealership.