"Our 928 Porsche headers showed an astonishing 23% horsepower gain..."
09-01-2008, 03:59 AM
#46
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Join Date: May 2008
Location: dallas, tx
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headers still available ?
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.
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 -
09-01-2008, 05:00 AM
#47
Three Wheelin'
09-01-2008, 10:48 AM
#49
09-01-2008, 02:00 PM
#51
Race Car
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?
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?
09-02-2008, 01:46 PM
#52
Burning Brakes
Thread Starter
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.
09-02-2008, 01:57 PM
#53
Rennlist Member
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.
The performance difference is noticable though, but YMMV.
09-02-2008, 02:01 PM
#55
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
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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.
The performance difference is noticable though, but YMMV.
09-02-2008, 02:06 PM
#56
Rennlist Member
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
09-02-2008, 02:47 PM
#57
Three Wheelin'
09-02-2008, 03:07 PM
#58
Administrator - "Tyson"
Lifetime Rennlist
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Lifetime Rennlist
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I'm guessing it's more of a crap shoot. The headers on my 79 are at least 10-15 years old.
05-21-2016, 12:57 PM
#60
Three Wheelin'
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.
Are we still pleased?
Considering the move on the 86.5.
Currently running stock headers, xpiped, stock intermediates, and RMB.
