Exhaust gases coming out of the engine drive one fan, called a turbine wheel. As the exhaust energy spins the turbine wheel, the shaft spins, and the other wheel, called a compressor wheel, also spins. The compressor wheel pressurizes the air that is going into the engine, which is beneficial for making additional horsepower from the engine. The shaft of the turbo is lubricated with oil, and some designs allow for water to be circulated through the center housing of the turbo, where the shaft is held, dpf delete pipe 6.7 powerstroke for additional cooling. The amount of boost (pressurized air) that the turbo produces is primarily determined by the design of the compressor wheel, and the speed at which the turbo spins.

Just be VERY CAREFUL about not getting any metal chips in the manifold, which would cause damage to the turbocharger. About the only way to be sure of this is to pull the manifold off of the vehicle to do the drilling and dpf delete pipe 6.7 powerstroke tapping. Every vehicle will vary slightly and the location of the thermocouple (pre or post turbo) is a factor. We recommend that you refer to the Owner’s Manuals for your specific Banks product and vehicle.
At Banks, we typically prefer to mount the thermocouple upstream of the turbo, but this is not always convenient. The temperature differential may be broader at lower temperature ranges, but the temp that we are most concerned about is at full power. Some of the sentiments that surround this question date back quite far.