Depending on the efficiency of the core you are intending to use, it can difficult to get sufficient cooling with a boot mount without getting some form of decent airflow through the boot of the car via ducting. A couple of fans won't cut it for heavy duty/track work. If you are struggling with your ECT with your current set up, due to an FMIC restricting airflow through your radiator for example, I would recommend a V-mount set up on the front. Here's mine. ECT sits at 87 degrees with sustained hard driving and ACT sits around 5 degrees above ambient at around 27 psi boost.