I'm not seeing a filter on the turbo in OP's picture... I'm also 35 and my eyes aren't what they were 10 years ago. Surely he doesn't run filterless right?
It's called turbo guard. It provides basically ZERO filtering other than blocking large debris. It still sucks in dust etc. People like them because it makes the turbo whine louder, that is all I can figure. Or, if you have ZERO space for a filter like the supercharged LS motor in the E90 on this forum.
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My turbo costs roughly 2 grand and I need a vac source for my PCV system, hence I run a filter on the single turbo. I guess if I had some on3 or knock off inexpensive turbo F it run a turbo guard and listen to the turbo whine?If you want more whine T51R mod it. I threw a turbo guard on my 6466 w/ T51R mod and it was silly loud. Talk about a whistle.
Some guys do it over wiring harnesses to prevent them from going brittle
That makes sense, if anyone needs to protect a wire, line, etc DEI makes products for that that look decent, not gold sticky tape.
https://www.amazon.com/stores/page/...a87-5f2e73f1f2b0&ref_=bl_dp_s_web_20386674011
I stand by my statement, the Gold tape is fugly and as
@9krpmrx8 said, "Monkey see, Monkey do"