I just installed some new parts on my 08' glide and I have this new high pitch noise that I haven't heard before. First I installed the screamin eagle stage 1 air cleaner kit and a k&n filter. I also installed a dobeck gen3 ejk. I also removed the gas tank while doing the install of these two items. It's a little harder to pin point because I installed both things at the same time. The noise is only the first 3-5 seconds of acceleration. I also noticed that I can hear the air cleaner breathing but that is to be expected. Just wondering if that is where the high pitch noise is coming from. I also read it may be the injectors, but not a bad thing per say. Maybe something to do with the dobeck and the injectors?