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Old 04-10-2018, 08:15 AM   #1
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Wanted: Pair of Early OEM Exhaust Manifolds

Looking for a cheap pair of the very early non-cat factory exhaust manifolds, per the pictures below.

Thanks - DM

(edit: tried unsuccessfully to shrink the second picture, so apologies for the large size)





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Old 04-10-2018, 08:49 AM   #2
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define cheap ... lots on ebay:

https://www.ebay.com/itm/Porsche-986-Boxster-97-99-Left-Right-LH-RH-Exhaust-Manifold-Pair-99611110105/122918009713?hash=item1c9e7bfb71:g:~TIAAOSw5nxaXmD 8&vxp=mtr
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Old 04-10-2018, 09:03 AM   #3
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Yup, have been already looking there for a while, thanks.

"Cheap" as in "looking-for-an-unwanted-pair-that-no-one-needs-any-longer"!
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Old 04-10-2018, 02:30 PM   #4
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Do these have suitable flow cross sections for your 3.2?

Maybe reference the part number against euro 3.2 manifold numbers. I seem to recall them having mid pipe cats.
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Old 04-10-2018, 03:34 PM   #5
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Quote:
Originally Posted by jaykay View Post
Do these have suitable flow cross sections for your 3.2?
Exactly the reason why I am looking to go for little money here. I am "hoping" that these are suitable, and were made to be one-size-fits-all. But I won't know for certain until I give them the once-over.

If someone reading these can measure the port openings, that would be great!

Thanks - DM
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Old 04-10-2018, 05:26 PM   #6
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I believe that those from early 3.4 996 engine may be what you want, should be bolt-on with larger tube diameter than early 2.5. They are on my long list but unsure of loss with low end torque plus scared to snap exhaust studs...
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Old 04-11-2018, 04:00 AM   #7
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I have a set off a 99 2.5 tip if they work.
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Old 04-11-2018, 04:17 AM   #8
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Quote:
Originally Posted by Boxstard View Post
I believe that those from early 3.4 996 engine may be what you want, should be bolt-on with larger tube diameter than early 2.5. They are on my long list but unsure of loss with low end torque plus scared to snap exhaust studs...
Thanks for the potential lead!

But my first impressions are that they would not be a direct drop-in fit to the rest of the system (all pictures from a Google search, so their accuracy is of course an unknown).

Here's a Boxster one:



And then we have the 996 one:



While the pipes do visually appear to be of a larger diameter, I notice the "upturn" at the 996 outlet flange, which appears, at least in these pictures, to be different than the "straight" exit of the 986.
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Old 04-11-2018, 04:19 AM   #9
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Quote:
Originally Posted by Xpit77 View Post
I have a set off a 99 2.5 tip if they work.
Perfect! Well worth a trial!

Let me know what you need for them (PM is fine, as you may wish).

Thanks - DM
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Old 04-11-2018, 04:37 PM   #10
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Hey man ......head flanges are at completely different angles from what I can see

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