As above after ever wash the tips almost black again afyer no time. My cars got a decat and miltek exhaust with a map so is this normal? Doesn't drink any oil at all
Mine only gets black on the bottom part of it. Since the decat I have noticed the back of the car covered in black spots,which I presume is all the shit coming out of the exhaust.
Mine was worse with the cat. No too bad now that I've got the decat. I find if I slap a coat or wheel sealant on it it just wipes off when washing.