Header tape is allowed. I had it on my 190 when I had a cracked header to try and keep the sound down to pass emmissions here, visual no sniffing in York County PA. It does also help to keep under hood temps down as well as keep the header hotter to flow the exhaust gases better. Some say to keep wrapping as far as you can to help keep exhaust gas velocites up and therefore gain a few HP due to more efficient flow.

__________________
~Jamie
_________________
2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....