[LightningGSX]

I can see it both ways, but after thinking about this, I'd bet the difference in charge temp between SS and AL piping would be a small fraction of a degree, due to the relatively small amount of inner surface area of the piping.I recently bought a bunch of various temp sensors to put in a number of different locations including IC inlet/outlet, turbo outlet/inlet, TB and to measure ambient temps in various locations.These are going on my new car/engine/setup, and I have a generic logger that will log all info and graph the results.I suspect in most setups, the intake charge will on average be hotter than ambient around the piping anyway.I also suspect the thermal insulation qualities(or lack of thermal insulation qualities) of piping material will effect flow, via different inner/outer viscosities of the layers of the intake charge, more than it will effect mean charge temp.