Gundo Hack on 997
Burning Brakes
Joined: Jun 2010
Posts: 1,168
Likes: 82
From: Ontario, Canada 2011 C4S
Gundo Hack
I have to laugh as I cycle down this road many times, spring summer fall, and never see a vehicle. But this day, that orange truck went up and down 3 times while I did this and probably another 5 cars in addition to the ones in the video....go figure
I have to laugh as I cycle down this road many times, spring summer fall, and never see a vehicle. But this day, that orange truck went up and down 3 times while I did this and probably another 5 cars in addition to the ones in the video....go figure
Last edited by docdrs; Jan 15, 2017 at 06:02 PM.
Pro
Joined: Oct 2013
Posts: 588
Likes: 2
From: The Great White North
What timing as I'm looking into this as well. Fister has a youtube video of their in comparison to stock. Anyone know what size diameter is their bypass? Based on their photo looks like 1.5 or 1.75? I read most go with a 2" bypass
http://fdmotorsports.net/category/fister-exhaust-997/
This is the first I read the Fister is loud but I'm not questioning that. It's easy to see why the PSE would be quieter(as in exhaust is still routed into the muffler). Based on feedback though, the Fister method has been positive for all size bypasses.
http://fdmotorsports.net/category/fister-exhaust-997/
This is the first I read the Fister is loud but I'm not questioning that. It's easy to see why the PSE would be quieter(as in exhaust is still routed into the muffler). Based on feedback though, the Fister method has been positive for all size bypasses.
Drifting
Joined: Nov 2011
Posts: 2,652
Likes: 63
From: Ontario
Gundo Hack
https://youtu.be/qCUjhVS9Mvs
I have to laugh as I cycle down this road many times, spring summer fall, and never see a vehicle. But this day, that orange truck went up and down 3 times while I did this and probably another 5 cars in addition to the ones in the video....go figure
https://youtu.be/qCUjhVS9Mvs
I have to laugh as I cycle down this road many times, spring summer fall, and never see a vehicle. But this day, that orange truck went up and down 3 times while I did this and probably another 5 cars in addition to the ones in the video....go figure
Racer
Joined: Mar 2016
Posts: 332
Likes: 38
From: San Francisco
Watch this, good video for fister mod (996) gives you info on the pipe used too I think.
https://youtu.be/lFF0Wnx9-NI
https://youtu.be/lFF0Wnx9-NI
Your linked video is noted as private.
Gundo Hack
https://youtu.be/qCUjhVS9Mvs
I have to laugh as I cycle down this road many times, spring summer fall, and never see a vehicle. But this day, that orange truck went up and down 3 times while I did this and probably another 5 cars in addition to the ones in the video....go figure
https://youtu.be/qCUjhVS9Mvs
I have to laugh as I cycle down this road many times, spring summer fall, and never see a vehicle. But this day, that orange truck went up and down 3 times while I did this and probably another 5 cars in addition to the ones in the video....go figure
Last edited by AltVelo; Jan 17, 2017 at 03:05 PM.
Racer
Joined: Mar 2016
Posts: 332
Likes: 38
From: San Francisco
I'm trying out "Super Gundo".
Details in link below.
http://www.renn-list.com/A-different..._10584466.html
Details in link below.
http://www.renn-list.com/A-different..._10584466.html
Captain Obvious
Super User
Super User
Joined: Aug 2003
Posts: 22,846
Likes: 348
From: Cambridge, Ontario, Canada
I'm trying out "Super Gundo".
Details in link below.
http://www.renn-list.com/A-different..._10584466.html
Details in link below.
http://www.renn-list.com/A-different..._10584466.html
Racer
Joined: Mar 2016
Posts: 332
Likes: 38
From: San Francisco
"retard", I haven't heard that word in a while.
My guess is it's quieter than Fister since it's using the PSE port. We will see shortly and I'll try and get a sound clip. Lots of rain here so it will be a while.
My guess is it's quieter than Fister since it's using the PSE port. We will see shortly and I'll try and get a sound clip. Lots of rain here so it will be a while.
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Drifting
Joined: Mar 2009
Posts: 3,372
Likes: 68
From: West of Mosport!
[QUOTE=AltVelo;13895228]I'm trying out "Super Gundo".
Details in link below.
http://www.renn-list.com/A-different..._10584466.html[/QUOTE
Kills mid range torque... Combo is called a Gunster.
Details in link below.
http://www.renn-list.com/A-different..._10584466.html[/QUOTE
Kills mid range torque... Combo is called a Gunster.
Captain Obvious
Super User
Super User
Joined: Aug 2003
Posts: 22,846
Likes: 348
From: Cambridge, Ontario, Canada
[QUOTE=Torontoworker;13898725]
Not suprised one bit. When I pulled my mufflers and replaced then with bypass pipe the drop in mid range torque was instantly noticable. Since this hack is almost as free flowing a the bypass pipes, the negative resultz should be about the same.
I'm trying out "Super Gundo".
Details in link below.
http://www.renn-list.com/A-different..._10584466.html[/QUOTE
Kills mid range torque... Combo is called a Gunster.
Details in link below.
http://www.renn-list.com/A-different..._10584466.html[/QUOTE
Kills mid range torque... Combo is called a Gunster.
Racer
Joined: Mar 2016
Posts: 332
Likes: 38
From: San Francisco
Super Gundo.. Gunster...bypass with PSE basically. To answer OP's orginal question, increase in db when on it and no drone. Quite happy with it after my short test drive.
Video clip below;
https://youtu.be/bt0-AaPcA4g
Loss in torque not evident. Perhaps a longer drive? At the same time, this is just like the PSE exhaust but with the bypass. In my case, it's a small 1.5" bypass. In thread below, this was discussed and they showed a dyno run to show an example of how back pressure impacts power curve
https://rennlist.com/forums/997-foru...-torque-2.html
Video clip below;
https://youtu.be/bt0-AaPcA4g
Loss in torque not evident. Perhaps a longer drive? At the same time, this is just like the PSE exhaust but with the bypass. In my case, it's a small 1.5" bypass. In thread below, this was discussed and they showed a dyno run to show an example of how back pressure impacts power curve
https://rennlist.com/forums/997-foru...-torque-2.html
Thread Starter
Instructor
Joined: Aug 2016
Posts: 104
Likes: 2
From: Toronto
Super Gundo.. Gunster...bypass with PSE basically. To answer OP's orginal question, increase in db when on it and no drone. Quite happy with it after my short test drive.
Video clip below;
https://youtu.be/bt0-AaPcA4g
Loss in torque not evident. Perhaps a longer drive? At the same time, this is just like the PSE exhaust but with the bypass. In my case, it's a small 1.5" bypass. In thread below, this was discussed and they showed a dyno run to show an example of how back pressure impacts power curve
https://rennlist.com/forums/997-foru...-torque-2.html
Video clip below;
https://youtu.be/bt0-AaPcA4g
Loss in torque not evident. Perhaps a longer drive? At the same time, this is just like the PSE exhaust but with the bypass. In my case, it's a small 1.5" bypass. In thread below, this was discussed and they showed a dyno run to show an example of how back pressure impacts power curve
https://rennlist.com/forums/997-foru...-torque-2.html
did you hear gundo and fister separately before coming to a conclusion?
Burning Brakes
Joined: Dec 2012
Posts: 785
Likes: 191
From: Earth
Mike McCarthy Exhaust! Mike is the service manager at Pfaff Porsche and is himself a senior Porsche Technician; he builds these exhausts that are similar to the Gundo and everyone I know who has one loves them, myself included! I have his exhaust on my Cayman S and I get compliments on the sound all the time! There are video clips of it online but they don't do it justice (poor relative sound quality): https://vimeo.com/60497930 and https://www.youtube.com/watch?v=x_sQqsOqbGY
I just wanted to let you guys know I spoke with Mike McCarthy and he confirmed he does indeed still make these and can sell and install them at Pfaff Porsche. Mike is a great tech, a great manager, and a super cool guy. I get so many compliments on my exhaust and I love it!
Good piece on Mike http://www.pfaffauto.com/2015/04/08/...er-black-belt/