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Gundo Exhaust Mod ("Hack")....
- Thread starter JP_Albin
- Start date
angusc
New member
https://www.google.com/search?q=Gundo+Exhaust+Mod&safe=strict&sa=X&biw=1280&bih=542&tbm=isch&tbo=u&source=univ&ved=0ahUKEwjGpejU9MfUAhVpAsAKHQe1CYsQsAQILg
I would think if you are really interested in this then you should read some of the links given in the DesignTek Exhaust Muffler thread on the forum. There is a good write-up about gas flow through the headers and in to the exhaust. If you perform this hack you would get a deeper more throaty sound but it is a one way modification as far as not being switchable. You my also like to consider changing out your stock header pipes and adding an X-Pipe while you are in the process of this modification. If that all appeals to you that is.
Thank you for you replying on this topic... apologies that I have only just logged on since the week end... thanks for the links too, much appreciated!
The hack just seems a cheap way of getting a bit more noise... I have owned 911s for the 20 years, my old 993 had a Rook exhaust and I do miss it ... (well the car itself and the exhaust!)
I will post what I decide to do...
Thanks jp
Les
New member
Its great on my 996.2 (same setup as a Gen1 997)
https://youtu.be/wD4x54XMdWc
But with the Gen2, it's more muted due to the extra center box.
I'm looking into a center box bypass, to get it to sound more like my old 996.
https://youtu.be/MVOaeTIJjtM
I'd recommend Paul http://www.exhaustmods.co.uk who can do it at your home in a couple of hours for £270.
Let me know if you have any questions.
Les
New member
When you hit 4K underload, it sounds wonderfull.
https://youtu.be/O9rsg4VpWoQ
Daz
Les said:Just replaced the Center box with an X-Pipe.
When you hit 4K underload, it sounds wonderfull.
https://youtu.be/O9rsg4VpWoQ
I am going to get the Gundo exhaust mod done by PCW http://www.exhaustmods.co.uk/porsche-911-996-977 and his internal x-pipe center box modification, £400 all in. Paul has a business unit now so does no more mobile work.
I am bought a K&N replacement air filter too.
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