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I would go ceramic then, I dropped a 1/2” drive ratchet during install of the motor right onto a bend on the pipe and it did not chip.
My guy offered flat black or silver, I used flat black for my 128i header in ceramic.
The Jet Hot coating is not the most attractive for sure but our pipe coated by the mfg (Sanderson) was well done if not show quality.
The ceramic is smooth and minty looking in comparison, however you can’t even see the pipe on a 1-series anyway…who cares.
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