Dodge 1500 5.7 Hemi with Flowmaster 40 series Delta - what is the tube for on OEM muffler?

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Aceman - 14 Mar 2006 05:40 GMT

I just had this muffler installed with dual exhaust, cat back, and it sounds
pretty good. However, I noticed the original OEM muffler had a couple of
tubes coming off of it. There is none on the Flowmaster.

What's that tube for? Is it a heat riser tube for the carb or is it for an
oxygen sensor? Do I need it hooked up for functionality?

The reasons I'm asking is because of a couple of things. I know these new
motors are fly-by wire and wondering if it affects functionality because it
feels like I'm losing power during certain use, the exhaust smells rich, and
it's droning. Did I pick the wrong muffler for this motor? Maybe I should
have gone for the 50 series SUV Delta?

Should I ask the shop that did it to rig up a tube in the muffler to
wherever it hooks up to?

Thanks in advance,

Ace

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GeekBoy - 14 Mar 2006 06:07 GMT

>I just had this muffler installed with dual exhaust, cat back, and it
>sounds pretty good. However, I noticed the original OEM muffler had a
>couple of tubes coming off of it. There is none on the Flowmaster.
>
> What's that tube for? Is it a heat riser tube for the carb or is it for an
> oxygen sensor? Do I need it hooked up for functionality?

Exhaust gasses that have not been broken down by catalyst maybe

> The reasons I'm asking is because of a couple of things. I know these new
> motors are fly-by wire and wondering if it affects functionality because
[quoted text clipped - 8 lines]
>
> Ace

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Aceman - 14 Mar 2006 12:40 GMT

> Exhaust gasses that have not been broken down by catalyst maybe

Not sure about that. It's a small tube, only 1/2". There are two on the
muffler, and two on the resonator.

Ace

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Jay - 21 Mar 2006 03:21 GMT

Are sure your not looking at the mounting brackets??

>> Exhaust gasses that have not been broken down by catalyst maybe
>
> Not sure about that. It's a small tube, only 1/2". There are two on the
> muffler, and two on the resonator.
>
> Ace

Are sure your not looking at the mounting brackets??

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Aceman - 23 Mar 2006 05:05 GMT

> Are sure your not looking at the mounting brackets??

Stupid me, yep, you're right, they are the mounting brackets! If only I
looked closer at first. When I did, I saw they are solid and not hollow
tubes.

LOL

Ace

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