Originally Posted by 2005F250
Really I never see the piont in Cold air intakes on Turbo Diesels. Cold or not when that air hits the turbo its gonna get hot. If you have an intercooler thats whats gonna make the biggest difference.
True, but the turbo is only going to heat the air up so much. Lets just say 100 degrees for the sake of this conversation. If you pull in 100 degree air thats 200 going through the intercooler. If you can pull in 80 degree air thats 180 going into the intercooler. Again these are not exact numbers but you get the idea. Cooler air is denser and holds more oxygen.
I think that these filters allow more air to be ingested to the engine and are not so much to pull in cooler air, just more of it.
I am about to do this mod too, but I am going to use a universal AMSOIL filter