Anyone here have any fluttering sound, that sounds like a bad lifter? I am getting it around 3500rpm and up. Noise stays the same level, doesnt get louder with rpm or temp. I have no power loss etc, but when I just did an oil change my oil was low, but I am not leaking and far as I can tell not burning any. I just changed the PVC valve but that hasnt made any difference. Every once and awhile my car does this weird, off cylinder idle like its running on 5 cyl, CEL will flash on and off sometimes if its bad enough but it never stays on, then I tap the gas a couple of times and everything is fine. Could it be a hydraulic lifter be on the way out?

Borla exhaust, Custom intake, KVR Cross drilled rotors, Mil Eliminators, Diablo chip, OMP Strut bar, Urethane motor mount insert, Full rear urethane suspension inserts.