Yah mine was horribly covered in almost snot, like a combo of condensation, and carbon. Boy did it run like a turd burner. That I assume was the first time it been cleaned since new, so around 40k were on it.
Mods: ZZP stage 3, 2.9 pulley, prefab pcm, 60lbers, AEM gauges, KandN CAI, SPEC stage 3+, ZZP S3 heat exchanger
ZZP long tube header, Strut bar, ZZP rear mount, Progress rear sway bar, Redline Tuning hood struts freshly installed.