On 15 psi runs and 68 degree ambient temperatures, the temperatures before the intercooler reached just under 295 degrees Fahrenheit. This is the section between the turbo and intercooler, and the hottest section in the system (and no, the PVC does not melt or deform)! At the other temperature sensor, after the intercooler, the readings peaked at slightly less than 150 degrees Fahrenheit. That is very good in my opinion, considering the heat that is put out of the stock turbo at 15 psi. I would estimate that the stock turbo is only about 60% efficient at 15 psi and would not recommend running this level of boost with the stock turbo on a regular basis. This test was simply to test the PVC/stock intercooler efficiency. I believe that the stock intercooler system is actually better than most people think. I believe that the pressure drop reported is due to the stock intercooler pipes, not the intercooler it's self.