Received a Hummer
Ok...In gas engines....K&N Air Filters are supposed to be the BOMB. But what about in a diesel engine....I hear NOTHING about air filters. Are they worth replacing? And is K&N good?
have to disagree. the intake temperature is the single biggest thing wrong with this vehicle IMO, an absolutely miserable HOT AIR INTAKE design. You should watch IAT for a while. I saw 190 just sitting at a light. Just a suggestion.with a stock duramax and stock turbo you don't need a CAI
I did. i would see 190 at lights, stock. After the CAI that I use was installed, it never gets above 130. It still rises, but not near the kind of peaks I was seeing.Out of curiosity, did you do the same test with a CAI? I don't think it would make much of a difference sitting at a light with either intake unless you had a functional ram air hood.