CooBlueDAB

So yeah, live in ohio so my header is pretty well tubular rust... anyways, a rattle has popped up. It sounded like the cat shield at first, which was a problem before... no, its fine, only one half in use and still welded solid.... So I started to tap on the pipe and loe and behold, when I rap on the header it sounds like there is something inside it rattling against the outside.

What could this be? I had a shop guy look at it and he said something about there being two layers of pipe in there and inside is probably broken... Ive never heard or saw anything like that before in my life nor does it make sense... so I am gonna say BS to that... but ... I guess I could be wrong.. Anyways, any ideas as to what is happening? Just had the timing belt, water pump etc.. all that done. and an oil change. Throttle seems restricted until it opens up, even then not as much power as before.

Something is definitely in that header, and it is probably time to get a new one.. but I would like to know what is the likely cause before I take action....

Also.. Id be getting a stainless 2 piece 4-2-1 from DC.. Should I just buy an O2 sensor ahead of time or is there a chance of saving the original?

DB1_559

is there a loose/missing bolt holding the header cause i got the same problem /was a missing bolt but for header dc kool and the o2 it can be reused but u have to be very careful not to get dirt/oil/etc on it

young noob

or you could go out and buy a new gasket, and just take off your exhaust manifold and see whats in there

CooBlueDAB

So look for a bolt? I dont think it is a bolt though, its all one big rusted piece. lol.... But any other ideas? what could be rattling INSIDE, when I tap on the header?

DB1_559

you could try what young nood said i mean all you have to do is replaced the gasket after its like what 5$

DSRxNATE DNRperformance

you sure its not the heat shield?

CooBlueDAB

well, at least not the cat heatshield, but the header HS seems to be solid as well. Me wonders what adverse effects may occur if I remove that, I know I read of some on the stock header. Though, in the condition it is now, not sure it matters.