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Joined: 07 Feb 2017
Posts: 2

PostPosted: Tue Feb 07, 2017 11:21 am    Post subject: 964 Replacement Exhaust system Reply with quote

Hi all,

Can anyone help.

My left hand side heat exchange has a rusted split on the welds (not flange) and my cat is rattling like buggary so i'm weighing up the options of both replacing old with new or replacing the whole system with the dansk below:


Does anyone have any experience with this system?

I can deal with the heat loss (as I only drive the car in the summer) but I wanted to also know if anyone has capped the second exhaust outlet (as i don't want to cut out the rear bumper)? if so, what with and did it affect performance?

Also if you've fitted one did the car need remapping?

Any advise would be appreciated.


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Joined: 19 Jan 2014
Posts: 115
Location: Prestwick

PostPosted: Wed Feb 08, 2017 11:08 pm    Post subject: Reply with quote

Hi, I have no experience of Dansk exhausts, appears to be a very reasonable price, if you ever plan to sell the car having no heat would I imagine put off a lot of people. There are other alternatives. But would cost more than the Dansk.
With regards to the left side outlet, you can get an aftermarket left side rear bumper part with the exhaust outlet, would obviously need painting though, as far as mapping, that shouldn't be necessary, also if your car is pre 92 it doesn't need cats.
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Albert Park

Joined: 16 Sep 2010
Posts: 1699
Location: North Yorks.

PostPosted: Thu Feb 09, 2017 9:25 am    Post subject: Reply with quote


I had a Dansk SS system, one in - two out on mone a while ago. I'm wondering why you are going for a two in - two out system if you want to block off one of the outlets? Dansk supply various configurations and it would be worth your while going through their catalogue to find a suitable sytstem.

Don't forget if you take away the heat, your de-mist won't be effective and even in the summer you might be grateful of it.

I would also take a look at Fabspeed systems which are much better quality than Dansk. The Fabspeed headers with heat exchangers are beautifully made and they will last for decades. I use their RS system (two - in, two - out for the RSR) on the front part on my system (I now have bespoke rear box) but again they do all configurations and they will respond quickly with advice to your contact.

This is a photo of my car with the Fabspeed RS system to give you an idea of quality. If you do decide to go for a twin out system their are plenty of people making NS bumper sections already moulded for the extra exhaust eliminating the need to cut your original bumper.

Good luck,
1980 - 84 924 Turbo with mods. (ex Tony Dron - 12th at Le Mans 1980 with works 924 Carrera Turbo).
1984 - 89 911 SC (1982)
1989 - 93 911 Carrera Sport (1989)
2010 - 964 Carrera 2 (1990) Redtek 3.8RSR
2012 - 14 Porsche Cayenne (2012)
2015 - 17 Porsche Cayenne Diesel S (2015)
2017 - 18 Macan Turbo Performance Package (2017)
2018 - 991.2 Carrera 4 GTS (2018)
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Joined: 17 Sep 2009
Posts: 6

PostPosted: Fri Feb 10, 2017 8:00 pm    Post subject: Reply with quote

Hi I have had the single out let system on my car , didn't need a remap and wasn't too noisy , no more so than a de-cat and cup pipe .
The only reason I've removed it where I live I need the demister all year round !
It 's the DesignTek system sold by Design911
The system is up for sale on Face book Porsche parts page for £200 .


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Joined: 07 Feb 2017
Posts: 2

PostPosted: Fri Feb 24, 2017 11:59 am    Post subject: Reply with quote

Thanks all - i'm going to explore the fabspeed options. I'm just in the process of removing the old exhaust manifolds (snapped studs already Mad ) - once i get the buggers off, i'll explore further but thanks for the info - much appreciated!
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Joined: 25 Sep 2014
Posts: 65
Location: Wiltshire

PostPosted: Thu Mar 09, 2017 10:03 pm    Post subject: Reply with quote

If it helps I

1) cat by-pass (from Ninemister)

2) cup pipe from Catgraphics

3) acorn muffler from Dansh

4) twin pipes outlet from Ruf

Sounds lovely Very Happy
1990 964 C2 (manual) - a bit "Ruf"ed up
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Joined: 13 Feb 2008
Posts: 54
Location: Chepstow, Monmouthshire.

PostPosted: Wed Mar 29, 2017 12:20 pm    Post subject: Reply with quote

I fitted a Fabspeed system to my car and it was fantastic and very high quality.

I still have the genuine Porsche left hand bumper piece. If you would like to purchase it to cut and save your own, drop me an e mail (mtw964@gmail.com).

It will not be expensive. Velvet red so probably will need painting.
Keepyour friends close and your enemies closer.
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