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unclebob
Monza


Joined: 31 May 2009
Posts: 174
Location: Twickers


PostPosted: Thu Jul 28, 2016 10:09 am    Post subject: DesignTec Valvetronic exhaust replacement for PSE Reply with quote

Hi.

I'm looking to replace my PSE which has rusted extensively. The DesignTec valvetronic (switchable) looks like a bargain at the moment:

http://www.design911.co.uk/fu/prod13019/Exhaust-Muffler---Silencer-Sports-VALVETRONIC-DesignTek-for-Porsche-996/

Has anyone had any experience of this? And how much work is it to get it to work with the dash button control (and speed control) of the original PSE?

Cheers,

Ben
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Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15157
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Thu Jul 28, 2016 1:54 pm    Post subject: Re: DesignTec Valvetronic exhaust replacement for PSE Reply with quote

unclebob wrote:
Hi.

I'm looking to replace my PSE which has rusted extensively. The DesignTec valvetronic (switchable) looks like a bargain at the moment:

http://www.design911.co.uk/fu/prod13019/Exhaust-Muffler---Silencer-Sports-VALVETRONIC-DesignTek-for-Porsche-996/

Has anyone had any experience of this? And how much work is it to get it to work with the dash button control (and speed control) of the original PSE?

Cheers,

Ben


Hi Ben, I have read a number of negative posts re the designtek exhausts baffeling breaking up.
I have a topgear valvetronic set up and its been on the car for 2 years with no issues, give Alex a call at Topgear, I would expect you to get one after haggling for around £750 maybe a little less. Don't worry they they might not show one in stock as they are the manufacturer and make them so will sort one for you.better to buy from the manufacturer than a middle man, also they have fitting partners across the UK if there site in Dorset is too far for you to go, so getting it fitted is easy.
Lastly they do a payment plan so you can spread the cost over 6 months make it even more interesting lol.
Quite a few guys on the forum have brought these for there 996 and 997s
HOPE THAT HELPS

https://www.topgear.co.uk/exhausts
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unclebob
Monza


Joined: 31 May 2009
Posts: 174
Location: Twickers


PostPosted: Tue Sep 20, 2016 1:45 pm    Post subject: Reply with quote

Thanks for the replies to this. I went with the Top Gear valvetronic one in the end.

Nice sound at low speed but I find there's a bit of a drone on the motorway (70+).

Is there a way to stop the PSE circuit changing it back to the loud setting above 50? Ideally it would be loud until about 40mph then switch to the quiet setting.
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stevepen
Spa-Francorchamps


Joined: 15 Mar 2009
Posts: 299
Location: Stockport


PostPosted: Tue Sep 20, 2016 2:07 pm    Post subject: Reply with quote

Was it easy to fit and wire up?
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stevepen
Spa-Francorchamps


Joined: 15 Mar 2009
Posts: 299
Location: Stockport


PostPosted: Tue Sep 20, 2016 2:37 pm    Post subject: Reply with quote

Just noticed the DesignTec one is down to £695 so is a good bargain at the moment.
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Harv
Suzuka


Joined: 18 Sep 2014
Posts: 1204



PostPosted: Tue Sep 20, 2016 2:57 pm    Post subject: Reply with quote

Whatever system you go for can I have your old vacuum units from the old silencers?

Drop us a PM Thumb
 
  
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Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15157
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Tue Sep 20, 2016 3:33 pm    Post subject: Reply with quote

unclebob wrote:
Thanks for the replies to this. I went with the Top Gear valvetronic one in the end.

Nice sound at low speed but I find there's a bit of a drone on the motorway (70+).

Is there a way to stop the PSE circuit changing it back to the loud setting above 50? Ideally it would be loud until about 40mph then switch to the quiet setting.


Ben, the topgear unit shouldn't drone at 70 ,I have had it on at 140 mph and I only needed to raise my voice a bit for the passenger to hear me, I have a couple of questions . who fitted it, as if there is a slight leak or the exhaust is touching the chassis somewhere this often happens at certain speeds or revs and the engine twists a bit and causes the exhaust to touch the chassis somewhere, with mine it was a disused bracket on the rear of the car touching the cats but only at certain revs, I removed it and the problem was gone.
The second was your comment that the circuit opens and closes at certain speeds ,have you done something to make this happen as mine works off the key fob remote and can be open or closed when I want it to be at any speed or revs ,so if for example as you say you would like it in off mode over 70 then I would just push the remote button and turn it off. maybe you can give more detail as to what you have done with yours to make it operate differently to mine. Thumb
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Isoproturon
Monza


Joined: 26 Aug 2012
Posts: 238
Location: East Yorkshire


PostPosted: Tue Sep 20, 2016 4:38 pm    Post subject: Reply with quote

Fitted one to my Carrera and it was spot on, worked a treat and sounded great with no drone that I can recall.
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Robertb
Long Beach


Joined: 01 Sep 2003
Posts: 6895
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S

PostPosted: Tue Sep 20, 2016 7:25 pm    Post subject: Reply with quote

unclebob wrote:
Thanks for the replies to this. I went with the Top Gear valvetronic one in the end.

Nice sound at low speed but I find there's a bit of a drone on the motorway (70+).

Is there a way to stop the PSE circuit changing it back to the loud setting above 50? Ideally it would be loud until about 40mph then switch to the quiet setting.


Does the dash switch not work any more?
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jcharalambides
Newbie


Joined: 14 Jan 2019
Posts: 27



PostPosted: Mon Jan 14, 2019 11:43 am    Post subject: Reply with quote

@Isoproturon
I had these installed on my carrera c2 and am having very loud low frequency noise at low revs, and droning on the motorway. I am trying to figure out if this is due to fitment or the silencers themselves. Are you able to confirm you have none of these issues?

thanks
james
 
  
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996mike
Trainee


Joined: 25 Feb 2016
Posts: 85



PostPosted: Mon Jan 14, 2019 1:47 pm    Post subject: Reply with quote

Not sure how far your exhaust has gone but my 2000
C2 pse had a issue with their flexi joint so had them cut out and
Had new flexi added this kept my car original protected the wonderful
Sound you get from a OE PSE and only cost £200.
 



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The return of Marty Wild
Barcelona


Joined: 04 Nov 2016
Posts: 1365



PostPosted: Mon Jan 14, 2019 2:58 pm    Post subject: Reply with quote

Harv wrote:
Whatever system you go for can I have your old vacuum units from the old silencers?

Drop us a PM Thumb


Laughing
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jcharalambides
Newbie


Joined: 14 Jan 2019
Posts: 27



PostPosted: Tue Jan 15, 2019 9:22 am    Post subject: Reply with quote

996mike wrote:
Not sure how far your exhaust has gone but my 2000
C2 pse had a issue with their flexi joint so had them cut out and
Had new flexi added this kept my car original protected the wonderful
Sound you get from a OE PSE and only cost £200.


My car was a PSE car, however when i purchased it it was equipped with non-switchable Dansk silencers. So no original PSE silencers to refurb (and no spare valves!)

I could go back to the Dansk but i would really like to have switchable.
 
  
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steve r
Monza


Joined: 26 Sep 2011
Posts: 199



PostPosted: Tue Jan 15, 2019 10:45 pm    Post subject: Reply with quote

unclebob wrote:
Is there a way to stop the PSE circuit changing it back to the loud setting above 50? Ideally it would be loud until about 40mph then switch to the quiet setting.


If yours is the proper Porsche installation then you can either disconnect the grey/pink wire from the relay board, bend the connector back on the relay or cut a diode inside the relay to disable the speed related change.
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Last edited by steve r on Wed Jan 16, 2019 9:02 am; edited 1 time in total
 
  
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MisterCorn
Long Beach


Joined: 08 Jan 2011
Posts: 6859
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Wed Jan 16, 2019 3:33 am    Post subject: Reply with quote

If you have the later manually switchable system it will do whatever the switch is set to if you cut the wire. If you have the earlier automatic system it would make it loud all the time I think. You can upgrade by changing the relay and adding the switch. I run the later system on my C2 and have upgraded from the earlier to later system on my C4.

MC
 
  
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JD Torino
Newbie


Joined: 09 May 2014
Posts: 26
Location: Wiltshire


PostPosted: Thu Jan 17, 2019 3:14 pm    Post subject: Reply with quote

I had the Top Gear switchable back boxes fitted to my Targa last year to replace the original PSEs. There is a drone between 2-3000 revs which reverberates in the cabin. If Im quicker on the throttle its much better...
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sp1ke
Newbie


Joined: 07 May 2009
Posts: 34



PostPosted: Thu Jan 17, 2019 8:14 pm    Post subject: Reply with quote

@JD Torino
re: your comment about the switchable topgear system droning between 2-3k, is this in quiet or sport mode? & does switching make much difference to the droning?

I ask as mine has the non switchable version, which I quite like, apart from the drone at motorway speeds, so was considering changing to switchable at some point.
 
  
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jcharalambides
Newbie


Joined: 14 Jan 2019
Posts: 27



PostPosted: Fri Jan 18, 2019 2:08 pm    Post subject: Reply with quote

JD Torino wrote:
I had the Top Gear switchable back boxes fitted to my Targa last year to replace the original PSEs. There is a drone between 2-3000 revs which reverberates in the cabin. If Im quicker on the throttle its much better...


Hi JD - is this the case both in quiet and loud mode? Also, is it generally very loud at low revs even in quiet?

thanks
james
 
  
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