Hummer Forums - Enthusiast Forum for Hummer Owners
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Hummer Forums - Enthusiast Forum for Hummer Owners (https://www.hummerforums.com/forum/)
-   Hummer H3 (https://www.hummerforums.com/forum/hummer-h3-17/)
-   -   Am I reading this right? (https://www.hummerforums.com/forum/hummer-h3-17/am-i-reading-right-44218/)

jpthomso Jan 15, 2021 05:42 PM
Am I reading this right?
 
Ebay -

HUMMER H3 5.3 PASSENGER SIDE EXHAUST MANIFOLD 2008-2010 NEW OEM GM 12600527

#1 on Diagram Only-Genuine OE Factory Original Item


Can I really get exhaust manifolds for my H3 Alpha that don't have the Cat? Then I could go with real dual exhausts with no restriction!!! I have given up trying to find headers.

hummerz Jan 15, 2021 06:07 PM
Alpha don't have the cats integrated.

https://cimg4.ibsrv.net/gimg/www.hum...d9c2936a8c.jpg

jpthomso Jan 15, 2021 06:35 PM
So I can just unbolt the ones I now have?

hummerz Jan 15, 2021 06:43 PM
Originally Posted by jpthomso (Post 381193)
So I can just unbolt the ones I now have?
Yes, leave the manifolds intact.

jpthomso Jan 15, 2021 07:18 PM
wonderful

Doc Olds Jan 18, 2021 09:40 AM
Originally Posted by jpthomso (Post 381190)
Ebay -

Can I really get exhaust manifolds for my H3 Alpha that don't have the Cat? Then I could go with real dual exhausts with no restriction!!! I have given up trying to find headers.
I think you should take another look under your truck and note the exhaust path.

TAINTER Jan 18, 2021 10:37 AM
Originally Posted by jpthomso (Post 381190)
Ebay -

HUMMER H3 5.3 PASSENGER SIDE EXHAUST MANIFOLD 2008-2010 NEW OEM GM 12600527

#1 on Diagram Only-Genuine OE Factory Original Item


Can I really get exhaust manifolds for my H3 Alpha that don't have the Cat? Then I could go with real dual exhausts with no restriction!!! I have given up trying to find headers.
Alphas don't have the cat attached to the manifold (not a 1 piece item like the 3.5L & 3.7L).

jpthomso Jan 18, 2021 03:10 PM
yea, it is tight under there. I'll find a way!

hummerz Jan 18, 2021 05:59 PM
All you need is pipe and a bender. :cool:

jpthomso Jan 18, 2021 06:07 PM
wish I had a bender


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