tbud454

I installed my DC 4-1 header last night and after the install we fired up the motor and there was a white smoke coming off of the header. I shined a light on it to make sure it was sealed and was not coming out of and spaces, but it was coming straight off of the header. After diriving it for about 15 min. the smoke was gone and hasnt come back since, but there is still a weird smell coming from it kinda like plastic. The smell was there with the smoke when I first started it but the smell has gone away for the most part. Anyone know what could have caused this??? TIA

hybridreams

Probably just the gaskets.

-Trinitron-

Sounds like you may have had a packing p-nut or something in one of the pipes. Im sure that it will eventually burn itself out though.

opi

doesn't seem like anything to worry about. it's probably some of the coating on the header burning off. as for the smell, it'll smell like that till you "break in" or drive around w/ the header....just like when you put on a muffler...it'll go away after awhile

SOHC_MShue

I'm pretty sure mine did the same thing when we put it on Cavell.

SB97civic

i got a strange smell after installing the ceramic header i bought, but now i have no problem... smoking doesn't sound too good though.

tbud454

Awsome, just wanted to make sure it was not anything to worry about.

hatchback19

The smoking is just the protectent coating on it, im sure thats what the smell is also. It'll go away after a few hours of driving.

hondachick81

as far as I can remember seems like my header smelt kinda funny at first too??

LOL....a p-nut in the pipe!

-Trinitron-

I know sometimes you can smell the new welds when they get hot, but it doesn't smell like plastic. I was guessing with the p-nut ! LOL