The best way to get rid of the old rusty exhaust tail pipe is replace these carbon tips.
Stainless steel and real carbon fibre housing made, paint in blue and gold burnt, gloss carbon finished, direct replacement of the BMW OEM exhaust tip. Comes with clamps.
They will fit all BMW M2/3/4/5/6 F series model, if you are unsure with the model, please email to ask before purchase.