So…by strange…what do you mean?Im using this, not sure if it is a large power increase. I feel like the seat of the pants acceleration is slightly better. I did it to ensure free flow of cool air to the turbo. It makes some noise that seems strange compared to other turbo diesels I have put CAI's on.
It is the VGT cycling. If you look at my KN post with my instagram video you can hear what that intake sounds like with a hood vent and the underhood insulation all removed. Sounds great. Cant wait to str8 pipe it someday.Yeah I can hear that sound on mine stock. To me, it sounds like a muffled flutter or pop off valve.