today i started it up after a week and gave it a lil quick rev and noticed a sound that i never noticed before. it sounds almost like a zipper being zipped up fast. it sounds like its coming from the cai. im hoping that its normal and i just never noticed it. motor mods: aemcai, msd wires, msd coil pack, mopar bov, perrin fuel rail, 180 thermastat, and thats about it. anyone heared this before? im a lil concerned.