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"Our 928 Porsche headers showed an astonishing 23% horsepower gain..."

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"Our 928 Porsche headers showed an astonishing 23% horsepower gain..."

 
Old 09-01-2008, 03:59 AM
  #46  
yamahasteve
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Originally Posted by Louie928 View Post
I have a friend who had a GT with X pipe and 2.5" rear exhaust. It made about 320 rwhp max which is about normal. He wanted headers. He got a nice set of equal length headers and had them ceramic coated. I made a tapered transition to go from the 3" header collector to 2.5" X pipe and connected to the existing 2.5" rear exhaust. I'd say it would be about the closest comparison you could make between what you could do with the stock manifolds and again with headers. The best I could do with that setup was 316 rwhp. Sharktuned and all. The tests were done within a few days and no other changes were made. Maybe a different X pipe location would help some. Maybe something else would help. Once you have a good X pipe and rear exhaust, that's about all you can do. This on a GT and I have no experience with 16 v US or Euro so I can't say what the difference would be for those.

I have a set of MSDS headers for a 928. They are new, ceramic coated, and polished to look like chrome. $400 plus shipping.

did Rick decide to purchase the headers ? i'd like to be second in line if not, without trying to step on anyone's toes - thanks either way -
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Old 09-01-2008, 05:00 AM
  #47  
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Originally Posted by yamahasteve View Post
did Rick decide to purchase the headers ? i'd like to be second in line if not, without trying to step on anyone's toes - thanks either way -
The headers are yours
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Old 09-01-2008, 09:28 AM
  #48  
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Originally Posted by Louie928 View Post
The headers are yours
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Old 09-01-2008, 10:48 AM
  #49  
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Originally Posted by Fabio421 View Post
I have the MSDS headers into a Y pipe on my 78 widebody. I am very happy with them and it feels strong but unfortunately I dodn't have a dyno to back it up. Sorry.
78 widebody? You got a pic of that? sounds interesting.

Joel
79 5spd
87 S4 manual
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Old 09-01-2008, 01:15 PM
  #50  
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Originally Posted by Louie928 View Post
The headers are yours
pm replied, thanks Louie, and thanks Rick
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Old 09-01-2008, 02:00 PM
  #51  
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Originally Posted by kary4th View Post
Really?

So throw these on my '78 and get 50 HP for $594.00 MSRP?


Really??

Linky

Who's bought them? Speak up - what do you think.
You guys that sell them, would you agree with their claim?
I remember looking at this MSDS header web site 7-8 years ago. They have not changed their claim after all these years.
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Old 09-02-2008, 01:46 PM
  #52  
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I think I'll have to get the MSDS headers. The bang for the buck is too much to pass up. I should have enough here from parts cars to put together a new system from the cat back. Thanks for the help and parts offers, guys.
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Old 09-02-2008, 01:57 PM
  #53  
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My only problem with the MSDS headers is the routing of the headers. It is a major PITA to work on the clutch with them on. I have been forced to loosen one the headers to drop the clutch pack. It's doable but still a PITA.
The performance difference is noticable though, but YMMV.
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Old 09-02-2008, 01:59 PM
  #54  
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Did I misread Louie's post, that the headers made LESS POWER?
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Old 09-02-2008, 02:01 PM
  #55  
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Originally Posted by soontobered84 View Post
My only problem with the MSDS headers is the routing of the headers. It is a major PITA to work on the clutch with them on. I have been forced to loosen one the headers to drop the clutch pack. It's doable but still a PITA.
The performance difference is noticable though, but YMMV.
Another issue with the MSDS headers is they are not all the same. I can drop my lower bellhousing & clutchpack on my 79 with no issues with the MSDS headers installed. My friend does the same with his S4. Yet on other cars they are in the way.
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Old 09-02-2008, 02:06 PM
  #56  
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Well crap, I wish I had known that. i woulda held out for your kind insteada the kind I got. Would make it lots easier to work on the dam thing. Then again, I guess I'm done working on that part now anyways, so I doan have to loosen it anymore. LOL
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Old 09-02-2008, 02:47 PM
  #57  
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Originally Posted by heinrich View Post
Did I misread Louie's post, that the headers made LESS POWER?
You are right, H. They gave a few less hp. I'll be sharktuning some more to see if I can at least get back to where it was, and hopefully a bit more.
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Old 09-02-2008, 03:07 PM
  #58  
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Originally Posted by soontobered84 View Post
Well crap, I wish I had known that. i woulda held out for your kind insteada the kind I got. Would make it lots easier to work on the dam thing. Then again, I guess I'm done working on that part now anyways, so I doan have to loosen it anymore. LOL
I'm guessing it's more of a crap shoot. The headers on my 79 are at least 10-15 years old.
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Old 09-02-2008, 05:00 PM
  #59  
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With the MSDS headers on my 84, there isn't a chance at getting in to service the clutch.
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Old 05-21-2016, 12:57 PM
  #60  
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Ok, how does the collective feel about this product now?
Are we still pleased?
Considering the move on the 86.5.

Currently running stock headers, xpiped, stock intermediates, and RMB.
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