Beware Hahn downpipes...FAIL
08-25-2009, 01:03 AM
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Beware Hahn downpipes...FAIL
This is mainly a rant to express my dissapointment in a normally highly regaurded vendor.
About 9 months ago I bought a full hahn exhaust (header, dp, cat back) and 6 months in the dp failed at the flex section. I spoke to warrenty and of course they say "Oh what a suprise, this has never happened in the history of this downpipe." Horse ****. Then they try to say its because I don't have mounts... but wait yes I do. So not the reason. Anyways I spend f*cking 28 bucks to send the downpipe to them and this is thier response (keep in mind at the time my car was GM stage 2 under warrenty with no other power adders, straight from the lot):
This converter and the flexible coupling failed as a result of extreme heat caused by an excessively rich fuel mixture. This is apparent because of the extremely dark coloration of the pipes and converter body itself. It's fairly obvious that fuel was burning in the exhaust manifold and converter inlet pipe. Converters that have failed because of engine or tuning problems are not covered by warranty.
Attached are the pics, let us know what you think.
Clay
What a f*cking genius... the pipe looks black? That is the explanation? Like ever exhaust in history the pipe looks dark. Its an exhaust pipe!!!!!! Fumes from the engine flow through it, no **** the inside is dark. So this apparenty "not a cheap import" as the site claims is such a stellar performance part that it can't hand a GM stage 2 car. Pretty sweet. Classic car company, blame anything possible even if it is dumb in an attempt to pretent thier part has still never failed. I personally will never buy anything from Hahn Racecraft ever again. And my engine still has absolutly no problems of any sort since the day I bought it. And lets not forget this downpipe cost me about $450.
Ok venting complete....
Anyways I wanted to take this opportunity to thank ZZP, OTTP, and CTI for selling quality parts for a resonable price. Had I known I was going to eat f*cking $450 I would have bought 3 downpipes from any one of you for the same price. What a rip off!
Currently I am running a ZZP 3" downpipe and it is as pefect as the day it was installed. And for the past few weeks I have been running my new TVS hard and its holding fine.
Thank you ZZP and thank you Harrop for being able to back up all the talk with reliable products.
About 9 months ago I bought a full hahn exhaust (header, dp, cat back) and 6 months in the dp failed at the flex section. I spoke to warrenty and of course they say "Oh what a suprise, this has never happened in the history of this downpipe." Horse ****. Then they try to say its because I don't have mounts... but wait yes I do. So not the reason. Anyways I spend f*cking 28 bucks to send the downpipe to them and this is thier response (keep in mind at the time my car was GM stage 2 under warrenty with no other power adders, straight from the lot):
This converter and the flexible coupling failed as a result of extreme heat caused by an excessively rich fuel mixture. This is apparent because of the extremely dark coloration of the pipes and converter body itself. It's fairly obvious that fuel was burning in the exhaust manifold and converter inlet pipe. Converters that have failed because of engine or tuning problems are not covered by warranty.
Attached are the pics, let us know what you think.
Clay
What a f*cking genius... the pipe looks black? That is the explanation? Like ever exhaust in history the pipe looks dark. Its an exhaust pipe!!!!!! Fumes from the engine flow through it, no **** the inside is dark. So this apparenty "not a cheap import" as the site claims is such a stellar performance part that it can't hand a GM stage 2 car. Pretty sweet. Classic car company, blame anything possible even if it is dumb in an attempt to pretent thier part has still never failed. I personally will never buy anything from Hahn Racecraft ever again. And my engine still has absolutly no problems of any sort since the day I bought it. And lets not forget this downpipe cost me about $450.
Ok venting complete....
Anyways I wanted to take this opportunity to thank ZZP, OTTP, and CTI for selling quality parts for a resonable price. Had I known I was going to eat f*cking $450 I would have bought 3 downpipes from any one of you for the same price. What a rip off!
Currently I am running a ZZP 3" downpipe and it is as pefect as the day it was installed. And for the past few weeks I have been running my new TVS hard and its holding fine.
Thank you ZZP and thank you Harrop for being able to back up all the talk with reliable products.
08-25-2009, 01:21 AM
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i had the same problem with my down pipe, first the welds broke so i paid to ship it out to them, then got a new one, then the flex pipe broke and i didnt wanna wait 6 more weeks so i just ordered a flex pipe from vibrant, then the cat clogged so i had to get another flex pipe and gut the cat.
08-25-2009, 01:38 AM
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What kind of EGTs are you pulling? And what is your AFR?
your DP should not be that color, it should be like EXsoccer's, my DP is the caramel/copper color like his. the only time I have seen them colored like yours it was because the cars had really high EGTs and definitely had a serious amount of gasoline burning in the exhaust.
Not defending a vendor, just asking for more information.
l8r,
PD
your DP should not be that color, it should be like EXsoccer's, my DP is the caramel/copper color like his. the only time I have seen them colored like yours it was because the cars had really high EGTs and definitely had a serious amount of gasoline burning in the exhaust.
Not defending a vendor, just asking for more information.
l8r,
PD
08-25-2009, 01:45 AM
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How can you sell a product specifically for our car that can't handle GM stage 2? Its the only mod that can remain under warrenty. What kind of performance product can't handle factory parts?
I don't know, but again the car was stage 2 off of the lot. I hadn't made a single change.
Your post is irrelivant, if you look at my downpipe and yours they are obviously not made with the same flex section. Mine was bought before Hahn started making downpipes themselves.
What are you saying? That every vendor that makes one with a flex section is wrong in doing so? Becuase I was under the impression these parts were specifically made for a cobalt SS/SC... a forced induction engine.
What kind of EGTs are you pulling? And what is your AFR?
your DP should not be that color, it should be like EXsoccer's, my DP is the caramel/copper color like his. the only time I have seen them colored like yours it was because the cars had really high EGTs and definitely had a serious amount of gasoline burning in the exhaust.
Not defending a vendor, just asking for more information.
l8r,
PD
your DP should not be that color, it should be like EXsoccer's, my DP is the caramel/copper color like his. the only time I have seen them colored like yours it was because the cars had really high EGTs and definitely had a serious amount of gasoline burning in the exhaust.
Not defending a vendor, just asking for more information.
l8r,
PD
What are you saying? That every vendor that makes one with a flex section is wrong in doing so? Becuase I was under the impression these parts were specifically made for a cobalt SS/SC... a forced induction engine.
Last edited by ajm5036; 08-25-2009 at 01:45 AM. Reason: Automerged Doublepost
08-25-2009, 01:50 AM
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your impression was wrong. there are two types of flex sections. one like you have, and a higher heat/forced induction type. a stage 2 car will push over 1600 degree's on egt's with ease. the felc section used is not ment to handle those temperatures.
go poke around vibrant performances web site and look for the flex sections.
go poke around vibrant performances web site and look for the flex sections.
08-25-2009, 01:55 AM
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your impression was wrong. there are two types of flex sections. one like you have, and a higher heat/forced induction type. a stage 2 car will push over 1600 degree's on egt's with ease. the felc section used is not ment to handle those temperatures.
go poke around vibrant performances web site and look for the flex sections.
go poke around vibrant performances web site and look for the flex sections.
Oh by the way area, while your here arguing with me. What month of Modified was your car in? I'm trying to go pic it up at barns and noble tomorrow. Was it august?
08-25-2009, 02:04 AM
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You might as well tell me now, otherwise I'll just figure it out in october... I want to bite off your mods.
08-25-2009, 02:04 AM
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Ok, well i would invest in an AFR and an EGT setup, but your stage 2 tuning may have been the problem, sucks that that happened to you, Ive never had that problem on any of my FI cars but ive spent alot of time researching and Ive seen a lot of the horror stories. I hope the ZZP works great for you
I personally run the ZZP Catless 3" and I wouldnt have it any other way, it was quite the pita to tap thru the rear flange so that the bolt holes would line up with my hahn 3" catback but Im loving the setup
l8r,
PD
I personally run the ZZP Catless 3" and I wouldnt have it any other way, it was quite the pita to tap thru the rear flange so that the bolt holes would line up with my hahn 3" catback but Im loving the setup
l8r,
PD
08-25-2009, 02:11 AM
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Ok, well i would invest in an AFR and an EGT setup, but your stage 2 tuning may have been the problem, sucks that that happened to you, Ive never had that problem on any of my FI cars but ive spent alot of time researching and Ive seen a lot of the horror stories. I hope the ZZP works great for you
I personally run the ZZP Catless 3" and I wouldnt have it any other way, it was quite the pita to tap thru the rear flange so that the bolt holes would line up with my hahn 3" catback but Im loving the setup
l8r,
PD
I personally run the ZZP Catless 3" and I wouldnt have it any other way, it was quite the pita to tap thru the rear flange so that the bolt holes would line up with my hahn 3" catback but Im loving the setup
l8r,
PD
08-25-2009, 02:14 AM
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Haha, ****.... barnes and noble trip... cancelled. Thats sweet though congrats, way to rep the cobalts. What size pulley are you running now on the TVS? I just strapped mine in and I love it. Oh and are you running 60's with a return style?
You might as well tell me now, otherwise I'll just figure it out in october... I want to bite off your mods.
You might as well tell me now, otherwise I'll just figure it out in october... I want to bite off your mods.
i'm running a 2.75 pulley on 79lb injectors and stock returnless system. it will remain returnless until i push beyond the limits of what i have in the works.
08-25-2009, 02:18 AM
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08-25-2009, 02:23 AM
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I'm right around 280 right now with just the TVS stock pulley and 60s. Do you think meth would get me over 300? Oh and are you running stcok throttle body?
Ok so I have a few more questions....
Ok so I have a few more questions....
08-25-2009, 02:47 AM
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08-25-2009, 03:02 AM
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2.75 pulley + timing = win
depends on how aggressive the tune is. yep. stock tb
depends on how aggressive the tune is. yep. stock tb
Last edited by Area47; 08-25-2009 at 03:02 AM. Reason: Automerged Doublepost
08-25-2009, 03:08 AM
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Well now I have a custom tune because I installed my TVS, so the AFR is perfect now. SO I'm not worried about this repeating. Thanks man, haha thats funny that you mentioned the rear flange wouldn't line up. Because if you look at the pics again you'll notice the rear flange is missing. Thats because I chopped that **** up and welded it to my zzp. It fit perfect and now its a zzp hahn hybrid.
l8r,
PD
08-25-2009, 03:09 AM
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08-25-2009, 03:11 AM
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lol, I just spent a lot of time with tap magic and a few drill bits, bolts up cleanly now, have you ever had problems with your hahn slipping apart at the slip joint where the DP meets the rest of the exhaust? mine actually came apart while driving, it sucked hearing that expensive piece of metal hit the ground
l8r,
PD
l8r,
PD