Hahn Header Install Problem *Pics*
I was thinking about sendin the hahn back and gettin the zzp tog header. I'll just have to buy a spacer for it so it fits, I think thats what I have to do with this hahn header as well, but the primairie holes are just too small.
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Joined: 09-08-07
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From: Kaneohe, HI
im pretty sure you have to opt for the 100dollar option on it...
yea, i talked to someone there about 2 months ago, and they told me if sounds just as quiet as stock. they tried a least a hundred different resonators and muffler combos to get it right. plus its a true 3" exhaust. pretty ******* cool to have a quiet 3". almost unheard of
yea, i talked to someone there about 2 months ago, and they told me if sounds just as quiet as stock. they tried a least a hundred different resonators and muffler combos to get it right. plus its a true 3" exhaust. pretty ******* cool to have a quiet 3". almost unheard of
Last edited by ColeJJones; Apr 13, 2008 at 12:28 AM. Reason: Automerged Doublepost
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From: Kaneohe, HI
here is the one you want if you want to go with a shorty
http://www.zzperformance.com/cobalt_...=543&catid=155
they are both great designs. go with the zzp if you have the money. either way you should have the same power coming out. not much difference except for the 4-2-1 on the zzp and the 4-1 design on the tog. i know the zzp is stainless and im not sure what the tog is made out of. at least you know that the zzp wont rust
http://www.zzperformance.com/cobalt_...=543&catid=155
they are both great designs. go with the zzp if you have the money. either way you should have the same power coming out. not much difference except for the 4-2-1 on the zzp and the 4-1 design on the tog. i know the zzp is stainless and im not sure what the tog is made out of. at least you know that the zzp wont rust
Last edited by ColeJJones; Apr 13, 2008 at 12:32 AM. Reason: Automerged Doublepost
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Joined: 07-29-05
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From: AZ
from the description, it looks like one of the bad headers that had a warped flange and some other issues...there was a big issue back in the day on RLF about them. probably why that is listed as a used part as well.
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From: Niceville, FL
I'm not a rocket scientist here, but if I had a fitment issue with someone's product I would call them directly and tell them my issues. Perhaps, Bill at Hahn would not only be able to correct the problem for future customers, but he may send you a new header with the issue fixed and help/reimburse you out somehow for your troubles. Bill stands behind his products and is very customer service oriented, so I'm sure he would be willing to go the extra mile.
As for other manufacturer's products to look at, I have the Custom Tubes Inc. 4-1 longtube header/downpipe. It works awesome and fits pretty good. You have the option of a 2.5" downpipe outlet or the full 3.0" outlet.
As for other manufacturer's products to look at, I have the Custom Tubes Inc. 4-1 longtube header/downpipe. It works awesome and fits pretty good. You have the option of a 2.5" downpipe outlet or the full 3.0" outlet.
I'm not a rocket scientist here, but if I had a fitment issue with someone's product I would call them directly and tell them my issues. Perhaps, Bill at Hahn would not only be able to correct the problem for future customers, but he may send you a new header with the issue fixed and help/reimburse you out somehow for your troubles. Bill stands behind his products and is very customer service oriented, so I'm sure he would be willing to go the extra mile.
As for other manufacturer's products to look at, I have the Custom Tubes Inc. 4-1 longtube header/downpipe. It works awesome and fits pretty good. You have the option of a 2.5" downpipe outlet or the full 3.0" outlet.
As for other manufacturer's products to look at, I have the Custom Tubes Inc. 4-1 longtube header/downpipe. It works awesome and fits pretty good. You have the option of a 2.5" downpipe outlet or the full 3.0" outlet.
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Joined: 01-02-06
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From: SK
Hahn is a great company, I am not saying they are not a great company. Bill is a great person to deal with as well. Don't hesitate to buy a Hahn exhaust system, but i'm definitely going to send the header back. They explained to me how to fix the problem, all you have to do is turn down the tubing for the water pipe and it will clear it. But knowing my luck i'll **** it up some how lol.
But yes you can rotate that coolant pipe out of the way!
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From: El Paso
the header they sent me has smaller primaires then the stock header though. Why should I take the chance of them sending me something else when it will probably be the same size primaries as the one they sent me, and it doesn;t even have a 3" exit, it's only 2.5" that isn't a true 3" header.
Former Vendor
Joined: 07-07-06
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From: Chicago, IL
So I went to install the rest of my exhaust today, the Hahn cat-back is already installed. I took off the dp, and I took off the stock header (which is a pain in the ass). I go to put the hahn header on and it fits, but the bottom of the header rests on a part of the transmission. The transmission piece goes across to the other side of the tranny. When I tighten the header down, the pressure from the header pushing down on that bar causes the transmission to leak on the right side where that bar goes across. So I take the header off and I compare the openings with the stock header, the stock header has bigger openings. I'm either thinking this is very poor design, or hahn sent me the wrong header? I need some answers.
Size Comparison (look at the holes on the new header (left) compared to stock (right)
Size Comparison (look at the holes on the new header (left) compared to stock (right)
The weekend rather got in the way of us supporting this customer...on Sunday night, my staff made me aware of his email to our Sales Department describing his findings, and I set the wheels in motion to lend a hand this Monday morning. I was not aware that this thread had been posted until I came across it rather by accident while here posting about other things.
We've been in touch with the customer regarding the correct procedure to compensate for the variations in the coolant pipe on the LSJ engines. As someone noted in an earlier post, it's an easy fix. We'll be amending instructions for this product in the future with this information so as to prevent further satisfaction problems, especially on weekend installations! We've sold dozens of these headers, and only seen this occasionally in the past, and our existing Tech Support system was able to address it well when it did come up.
For those who are wondering just what's up...there are variations in the production of the coolant pipe on the LSJ. Our header is TIG-welded on a fixture that has positive stops to locate the tubes effectively in the region of the coolant pipe, but the coolant pipes themselves vary somewhat...apparently, as the stock cast manifold is considerably further away from the coolant pipe than our tubular header, it's not an issue GM was concerned with, and GM could thus make the pipes to a very wide shape tolerance. The fix is easy...we just rotate the pipe slightly on its O-rings to a location that clears the header.
Our apologies for any consternation this all caused to BlackSSNick. We live and learn, and his experience will enable us to improve our product's documentation for future purchasers. It's not often that we have to make instruction revisions this far into a product's life cycle, but we do what we have to, when we have to!
Former Vendor
Joined: 07-07-06
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From: Chicago, IL
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