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Old 06-12-2013, 06:43 PM   #1
trentcdrums
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Exhaust fumes in cabin - headers

I know that smelling exhaust after headers install is normal. So how long will I have it? Will it harm me? Never could find these answers..


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Old 06-12-2013, 07:25 PM   #2
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bump for you...I don't want you to die before your time.

Usually, conventional wisdom is smelling the exhaust is not a good thing, and if a mechanic told me it was after a header install, I'd look at him funny, wondering how the leak heals itself. Will wait on experts for that info.
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Old 06-12-2013, 07:29 PM   #3
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Exhaust fumes in cabin - headers

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bump for you...I don't want you to die before your time.

Usually, conventional wisdom is smelling the exhaust is not a good thing, and if a mechanic told me it was after a header install, I'd look at him funny, wondering how the leak heals itself. Will wait on experts for that info.
+1


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Old 06-12-2013, 07:36 PM   #4
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Headers will always produce an exhaust smell, to some degree. Anyone telling you otherwise is in denial.

Check to make sure you don't have a leak between headers and exhaust.
Did you use new OE gaskets? Did you maintain the metal bracket between the pipes?

Go drive up next to a wall to hear your leaks better.
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Old 06-12-2013, 07:43 PM   #5
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Exhaust fumes in cabin - headers

Had the shops tighten my flange bolts again today. Still a little bit smelling. It scares me though.


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Old 06-12-2013, 08:54 PM   #6
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I remember your post. You sprayed a hell of a lot penetrant to get the header to exhaust off. Might be some of it burning off. Don't forget, dirty hands touching the headers. Takes time to burn off.
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Old 06-12-2013, 09:13 PM   #7
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Headers will always produce an exhaust smell, to some degree. Anyone telling you otherwise is in denial.

Check to make sure you don't have a leak between headers and exhaust.
Did you use new OE gaskets? Did you maintain the metal bracket between the pipes?

Go drive up next to a wall to hear your leaks better.
They shouldn't... The only time I got a smell inside my cabin is when I drippe some oil on them
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Old 06-12-2013, 09:14 PM   #8
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Re: Exhaust fumes in cabin - headers

Also by installing headers in place of your OEM catted manifolds you are now running without a major emmisions control component. The sulfers and NoX"s and what ever fumes in your exhaust are no longer being burnt and cleaned up. So you will have a semi potent nostril buring exhaust fume smell. You will notice this more often at drive thru windows, and in cooler months when the fumes linger. It will be embarising especially when girls tell you your car smell like crap.
You can live with it, purchase aftermarket high flow cats or OEM euro cats to solve this problem and likely correct the service engine light issue that you probably also have now.



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Old 06-12-2013, 09:28 PM   #9
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Most euro models also have their cats in the headers.
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Old 06-12-2013, 09:41 PM   #10
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Exhaust fumes in cabin - headers

If I just buy a cat and install it after the headers will that help?


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Old 06-12-2013, 09:43 PM   #11
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Re: Exhaust fumes in cabin - headers

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Most euro models also have their cats in the headers.
I think you may have corrected me on this before. Sometimes I reply before realizing that I'm not in the M forum. (Using the App) Thanks.

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Old 06-12-2013, 09:54 PM   #12
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Exhaust fumes in cabin - headers

Other options?


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Old 06-12-2013, 10:25 PM   #13
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Exhaust fumes in cabin - headers

I had an hour drive home and even with the windows opened I felt really weird.. The fumes just aren't going. I cannot keep driving like this. Especially if it rains.


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Old 06-13-2013, 08:52 AM   #14
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Wh as you're smelling is raw uncleaned exhaust. The actual toxins in exhaust are ordorless, clorless, and dangerous.
you will not enjoy a fumeless ride anymore unless u use ur cats.
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Old 06-13-2013, 10:19 AM   #15
trentcdrums
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Exhaust fumes in cabin - headers

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If I just buy a cat and install it after the headers will that help?


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Can someone answer this! Can I delete a resonator and replace with a cat?


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Old 06-13-2013, 01:56 PM   #16
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Re: Exhaust fumes in cabin - headers

Yes you can. Just check out the amount of space you have for fitment before you order a cat. The closer to the headers the better.

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Old 06-13-2013, 02:01 PM   #17
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Re: Exhaust fumes in cabin - headers

If you are thinking there are fumes getting in the cabin even with windows closed you might still have leaks under the hood that are being drawn through the HVAC system. Something You can look into more.

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Old 06-13-2013, 03:02 PM   #18
trentcdrums
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Exhaust fumes in cabin - headers

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Yes you can. Just check out the amount of space you have for fitment before you order a cat. The closer to the headers the better.

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But will my smell issue leave?


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Old 06-13-2013, 03:11 PM   #19
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Exhaust fumes in cabin - headers

If you're planning on putting a cat in, why did you put headers on your car in the first place? You're defeating the whole purpose. Might as well just get your stock ones put back on.
Also, the smell is normal and not good for you. By deleting the cats (aftermarket headers) you've deleted the only thing that reduces emissions. Your exhaust is now raw and Uncleaned.
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Old 06-13-2013, 04:42 PM   #20
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If I just buy a cat and install it after the headers will that help?


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Ummm...you car is illegal until you add a cat.

Quote:
Originally Posted by peytonracer4 View Post
If you're planning on putting a cat in, why did you put headers on your car in the first place? You're defeating the whole purpose. Might as well just get your stock ones put back on.
Also, the smell is normal and not good for you. By deleting the cats (aftermarket headers) you've deleted the only thing that reduces emissions. Your exhaust is now raw and Uncleaned.
Ummm...high flow cats.
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