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Gundo Hack

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Old 01-30-2013, 07:22 PM
  #16  
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We tried
Old 01-30-2013, 08:56 PM
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I really appreciate all of the feedback and think there is an equal, easier and more economical option in this case. After all I am using M1 V Twinn, Techron, a CTEK 3300, installing rennsport pedals and eventually PSS10, store my car on foam tiles, etc. based on recommendations from this forum.......
Old 01-31-2013, 12:23 PM
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Gundo Hack sounds like a Korean dance song.
Old 01-31-2013, 01:10 PM
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Originally Posted by ScottMellor
Gundo Hack sounds like a Korean dance song.
Good one! Copyright it, tell Psy and buy an 993tt S.
Old 01-31-2013, 01:15 PM
  #20  
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Originally Posted by ScottMellor
Gundo Hack sounds like a Korean dance song.
Scott, can I just say ... I really enjoy your humor.
Old 01-31-2013, 02:26 PM
  #21  
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Originally Posted by pstoppani
My experience is that you end up wasting a lot of time and money in the learning process such that you rarely ever actually come out ahead. The reason for having an expert do something is to make sure it is done right. If I haven't done something before, I usually screw up on the first try, possibly damaging something else in the process. If you read how people didn't like their DYI exhausts and end up buying a pre-made one, just does not seem like a wisely "saved" $300 to cut up your own exhaust.

I understand DYI for the sake of DYI (hobby), but unless something is a big labor saving project, I'm not convinced there is money to be saved. "Penny wise, pound foolish" as they say.

I just hate seeing someone butcher their exhaust to save a $300. The FDM (to pick one), has had some really great reviews... Saving $300 is what the OP's main motive seems to be.
I think there are people like myself that just like to tinker with their cars. I have built many different exhausts for my turbo and my other cars just for fun. I typically will buy additional exhausts to modify and leave the stock ones alone in case of a screw up.

Below are examples of an addition muffler I bought for my M3 and modified. I cut open the can from the top, removed the perforated tubing and replaced it with solid tubing. I restuffed the muffler and welded the sheet metal back on. Once the muffler is installed, there is no visible evidence that the mod ever took place. However, now the car has a really nice tone to it. Total cost of buying an extra muffler and doing the mod was about $300 and I still have my original muffler stored away.

Did I do it because I was cheap? I don't think so but I did get a lot of satisfaction from doing it



Old 01-31-2013, 05:31 PM
  #22  
97_993C2
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I am fairly sure that the Fister Stage I evolved from the DIY LPPM muffler mod anyway. Darin just refined it and took it took to another level with the Stage IIs. I believe Stage IIIs are another step in that evolution.

I confess that I do not know what the term Gundo Hack means.

Last edited by 97_993C2; 01-31-2013 at 10:47 PM. Reason: deleted inappropriate/unjustified rant
Old 01-31-2013, 08:04 PM
  #23  
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Originally Posted by 97_993C2
I confess that I do not know what the term Gundo Hack means...
Gundo Hack adds a bypass pipe from muffler in to muffler out; thus, some of the exhaust will bypass the muffler. Kind of halfway to full bypasses.

Last edited by pstoppani; 07-02-2015 at 07:27 PM.
Old 01-31-2013, 08:43 PM
  #24  
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Originally Posted by pstoppani
Gundo Hack adds a bypass pipe from muffler in to muffler out; thus, some of the exhaust will bypass the muffler. Kind of halfway to full bypasses.
.......and you control the loudness via the tube size. Some 997 guys mention the 2" pipe as a good voicing.
Old 01-31-2013, 08:50 PM
  #25  
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So wadya think they do with this to make it sound so good?
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Old 01-31-2013, 10:02 PM
  #26  
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That certainly is not going to pass Le Circuit dB's =-) Funny thing is it would probably be fine for the glen
Old 01-31-2013, 10:24 PM
  #27  
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Originally Posted by pstoppani
Gundo Hack adds a bypass pipe from muffler in to muffler out; thus, some of the exhaust will bypass the muffler. Kind of halfway to full bypasses.
Thanks, now I feel duly stupid jumping to conclusions. What is the derivation of the expression? Looks like LPPM in the 993 world. Which was first?



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