Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
992 : 2019- 0
991 : 2011- 21
997 : 2004- 63
996 : 1997-2005 32
993 : 1993-1998 4
964 : 1989-1993 0
Carrera 3.2 : 1983-1989 2
Carrera SC : 1977-1983 1
930 Turbo : 1975-1989 1
Early 911 : 1964-1977 1
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 26
Cayman : 2005- 20
Cayenne : 2003- 5
Macan : 2014- 3
Panamera : 2009- 0
912-914-924-928-944-968 0
959 - CarreraGT - RaceCar 0
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [992] 2018-Current
Porsche 911 [992]
911 [991] 2011-2019
Porsche 911 [991]
911 [997] 2004-2012
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic

Which after market exhaust system do you have?
DesignTek
8%
 8%  [ 1 ]
TopGear
33%
 33%  [ 4 ]
Miltek
8%
 8%  [ 1 ]
Spyder Performance
8%
 8%  [ 1 ]
Dansk
8%
 8%  [ 1 ]
IPE
0%
 0%  [ 0 ]
Other
33%
 33%  [ 4 ]
Total Votes : 12

Author Message
Hovis
Trainee


Joined: 09 Mar 2019
Posts: 76
Location: Robin Hood Country


PostPosted: Sat Jan 04, 2020 12:12 am    Post subject: 997.1 Exhaust Upgrade - Real World Experiences & Advice Reply with quote

Hi,

Looking to replace the tired and rusting exhaust system, it's just standard non Sports system.

I've been scouring forums and reviews for as much information as but wanted to get real work feedback from users on the forum.

Looking for experience and feedback... to my many questions!

Overall performance increase (not expecting any thing huge)
Sound - want to have some thing bit more throaty but no motorway drone
CAT - looking to also change these to free up the flow 200 cell but Straight or X-pipe? Read about loss in low end tore with the X-pipe
Headers - With X50/51 adding these and from reading up many people recommend doing upgrading these.
Induction - worth doing the Plenum and Throttle body?

Brands - I know you get what you pay for but looking for quality at a more affordable budget- Kline, Akrapovic and even IPE are too much for the budget. Added in a poll too try to get a feel of what people have opted for.

DesignTek - seem to have some great Packages on Design911
TopGear - only seem to have valvetronic and seems to be a big job to add this to a car with out it if you want OEM button
Miltek - always heard great things about them
Spyder Performance - seem to have a rate of pretty good upgrades
Dansk - some reviews seem to have had quality issues? but also heard some good things

As ever throwing this open to people with experience and looking to take any guidance on this. It's my daily driver and slowly looking to upgrade the parts of the car as they need replacing.
 
  
View user's profile Send private message
   
hermes
Silverstone


Joined: 08 May 2017
Posts: 130



PostPosted: Sat Jan 04, 2020 9:34 am    Post subject: Reply with quote

Cargraphic quiet system on my 997.1 Very similar to stock, but a slightly raspier (is that a word?) tone, no louder, and no drone. Very happy with it.

Put the back boxes on myself, and had the cats and manifold done when the engine was out.
 
  
View user's profile Send private message
   
Scholester
Suzuka


Joined: 16 Jan 2012
Posts: 1133
Location: South West


PostPosted: Sat Jan 04, 2020 10:42 am    Post subject: Reply with quote

Kline (200 cell) on my .1 Turbo.
Quality system and bought at a great price direct from the factory.
_________________
997.1 Turbo Coupe, manual, black/black. 29k miles under its belt.
 
  
View user's profile Send private message
   
Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15635
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Sat Jan 04, 2020 7:20 pm    Post subject: Reply with quote

Hovis , exhaust note is very personal so honestly best to try and listen to a few yourself and decide. I have a valved cargrahic full 200 cell set up on my gen2 but at £6,000 not a cheap option the 200cell cats alone were over 3k Surprised Surprised
on my gen1 I had X51 headers ,topgear valved boxed used from the key fob supplied (I didnt bother with the proper PSE switch set up) topgear 200 cell big bore cats . I was very happy with the sound and price of this set up . forum member shabs had the same set up done and heres the vid of his car for you to listen to and decide if you like the sound or not. dont forget if you go Topgear members get 10% discount as they are a site sponsor.

https://www.youtube.com/watch?v=26fjqA6eUt8
_________________
911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 
  
View user's profile Send private message
   
Thefinn
Suzuka


Joined: 11 Jun 2014
Posts: 1125
Location: Essex


PostPosted: Sat Jan 04, 2020 9:13 pm    Post subject: Reply with quote

I have the oem X51 headers with PSE boxes and Topgear 200 cel cross over cats and the note over the standard system is a lower deeper bubble with a bit of crackle and pop thrown in, I like it but as Phil says it's a personal thing so check out as many vids as you can.

On the plenum and TB mod there was a bit of debate about if it actually lowered low down power but gave more high end so you might want to read a few threads on this before you decide.
_________________
997.1 C4S CAB

The Finn's 997 4S progress thread take two
 
  
View user's profile Send private message
   
Hovis
Trainee


Joined: 09 Mar 2019
Posts: 76
Location: Robin Hood Country


PostPosted: Sat Jan 04, 2020 11:35 pm    Post subject: Reply with quote

Thanks all for advice so far and sorry if missed Cargeaphic in the poll.

I’ve been listening to any videos I can find to check out the exhaust notes. @phil thanks for posting this one up.

The top gear system seems pretty good value, a tad more than the Designtek but some great feedback from real world use.

In terms if the fob think Id much prefer a button in the car, but suppose would just keep the fob in the car.

Practically the switchable system could I can see might be beneficial on longer trips.

@thefinn - do you see any loss in low end torq with the cross over cars?
Had read many mixed reviews on The TB, but thinking as it’s a 3.6 increase maybe noticeable vs 3.8s
 
  
View user's profile Send private message
   
Newbe
Trainee


Joined: 21 Apr 2019
Posts: 56



PostPosted: Mon Jan 06, 2020 7:07 am    Post subject: Reply with quote

I’ve just purchased an Armytrix dongle, 2 remotes and adaptor lead which connects to my current solenoid. With the Armytrix dongle you can switch on and off with a remote but you can also have it on Auto so it switches itself at 3000rpm. You can also reset engine fault codes. I paid £399, I purchased a Spyder exhaust sometime ago, quite good quality, sounds good at high revs, not sure about low revs🤔. I done it as a temporary for a year or so but I’ve decided to leave it on.
 
  
View user's profile Send private message
   
Newbe
Trainee


Joined: 21 Apr 2019
Posts: 56



PostPosted: Mon Jan 06, 2020 7:07 am    Post subject: Reply with quote

I’ve just purchased an Armytrix dongle, 2 remotes and adaptor lead which connects to my current solenoid. With the Armytrix dongle you can switch on and off with a remote but you can also have it on Auto so it switches itself at 3000rpm. You can also reset engine fault codes. I paid £399, I purchased a Spyder exhaust sometime ago, quite good quality, sounds good at high revs, not sure about low revs🤔. I done it as a temporary for a year or so but I’ve decided to leave it on.
 
  
View user's profile Send private message
   
isysman
Zolder


Joined: 22 Apr 2011
Posts: 5905
Location: Cheshire


PostPosted: Mon Jan 06, 2020 8:12 am    Post subject: Reply with quote

You missed Kline off the poll! Very popular on this forum I believe.

This is what I have but I don't think they make exhausts for NA cars, only the Turbo variants, but I could be wrong there.






_________________
911 GT2RS Build & 981 Boxster S
Sold ~ 987 Boxster S 3.4, 997.1 3.8 Cab, 987 3.2 Boxster S, 986 Boxster 2.5

 
  
View user's profile Send private message
   
Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15635
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Mon Jan 06, 2020 8:31 pm    Post subject: Reply with quote

Hovis , the 997.1 3.6 is a very capable car mine was a 3.6 well it was when I first brought it Grin Grin I also fitted the IPD throttle body plenum along with a BMC air filter .you will need the car remaking if you do the TB dont listen to reports the car will relearn the parameters , it will to a degree but not everything will be set up right it may retard the timing or make it run too lean so you really must have a remap to bring everything together and get the best from the car .I certainly saw big wins in the power curve and mine had been known to accelerate faster than a gen2 3.8 Grin although it may have been driven by miss daisy that we will never know Floor

the IPD doesn't give the gen2 the same level of gain as the gen1 as I also have it on my gen2, which may explain the differing opinions . heres my gen1 when I brought it and after I tweaked it Grin Thumb
_________________
911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 



porsche-911-coupe-2dr-tiptronic-s-da051b1513847ca51957dd70f3f74975-640x480.jpg
 Description:
 Filesize:  57.46 KB
 Viewed:  873 Time(s)

porsche-911-coupe-2dr-tiptronic-s-da051b1513847ca51957dd70f3f74975-640x480.jpg



28685658252_5637ed60a0_c.jpg
 Description:
 Filesize:  163.02 KB
 Viewed:  873 Time(s)

28685658252_5637ed60a0_c.jpg


  
View user's profile Send private message
   
Hovis
Trainee


Joined: 09 Mar 2019
Posts: 76
Location: Robin Hood Country


PostPosted: Mon Jan 06, 2020 10:46 pm    Post subject: Reply with quote

Sorry if missed off Klein, Cargraphic as the others section is winning out!
Tried to go back and edit the post to add them in but no joy!

Salute @phil997 - lovely work on your 3.6

Go a fair amount lined up for my car but gotta take it steady and slow.
Had it coming up for 12months in March do going forward 3-5 year plan.
 
  
View user's profile Send private message
   
C11BRA
Hockenheim


Joined: 30 Mar 2015
Posts: 661
Location: North London. Herts.


PostPosted: Tue Jan 07, 2020 12:42 am    Post subject: Reply with quote

I’ll be watching this thread. My missus just bought C11BRA a Spa track day for Xmas. Pressure on to remove the incredibly noisy exhaust and re-instate some cats. Need to get under 103 DB. I reckon I’m at 120 right now. I’ll test at the weekend with my new decibel meter that arrived today.
_________________
2006 997.1. Project GT3C. C stands for ???
2018 Audi A4 Avant Black Edition.
Ex 996 C2 Man.
Ex Ram Cobra V8.
Ex Series 1 RS Turbo.

 
  
View user's profile Send private message
   
Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15635
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Tue Jan 07, 2020 1:41 am    Post subject: Reply with quote

C11BRA, Have a look at getting it valved just for those I need it quiet moments eg trackdays and church visits etc. Grin but it would allow you to retain hooligan mode for those big kid at heart times which for me is 90% of the time Thumb Thumb
_________________
911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 
  
View user's profile Send private message
   
Hertsdriver
Montreal


Joined: 12 Nov 2018
Posts: 502
Location: Hertfordshire/London

2004 Porsche 997 Carrera 2

PostPosted: Tue Jan 07, 2020 11:07 am    Post subject: Reply with quote

Ive got standard back boxes but Top Gear 200 cell cross over cats on my 3.6. Sound is much improved over standard, but isnt loud IMO. I understand that in terms of flow only (and therefore potential gains) only changing the CATS has any actual effect, and changing the backboxes only affects the noise (unless you have more substantial work done to the engine and have a remap). I cant say I noticed an increase in power when driving, Top Gear claim 12-15 extra BHP Dont know . Certainly havnt noticed a drop in low end torque.
There is no doubt that changing CATS reduced weight though, the standard ones weigh a ton!

Hope that helps
_________________
My 997.1 C2 ownership thread: http://911uk.com/viewtopic.php?t=134228
 
  
View user's profile Send private message
   
Macca38
Newbie


Joined: 10 Sep 2019
Posts: 34
Location: London


PostPosted: Tue Jan 07, 2020 2:39 pm    Post subject: Reply with quote

I got a quote from Europipe of £2845.00 plus £540 to fit which at the time gave me a heart attack but now looking at the rest doesn't seem so bad. Theirs come with the switchable noise level also. I haven't heard anything bad about Europipe on the forums either, i.e no droning noise on motorway but loud enough going through the gears....worth a look. Compared to other marques i think Porsche aftermarket exhaust are very expensive.

I'm going to give Simpson Race Exhausts in Slough a quick ring also, those guys are untouchable for workmanship, race teams from all over Europe seem to be sending their cars there atm, got to be better than some of the other options out to choose from...
_________________
MG v8 Sebring
Audi B5 S4
996 Turbo
Golf Mrk2 GTI
 
  
View user's profile Send private message
   
easternjets
Watkins Glen


Joined: 29 Apr 2016
Posts: 2178
Location: Darlington


PostPosted: Wed Jan 08, 2020 2:02 pm    Post subject: Reply with quote

Some people have been known to be kicked off Spa for exceeding the noise limit, it 'might' have been me but I think the culprit is lurking on this thread!!
With a db of 132 registered the next day at Dinslaken even the disguise didn't help his case.
_________________
997 Turbo Gen 2
997 Turbo Tiptronic S
Porsche 968 Coupe 1992
Porsche 928 S4
Porsche 911 3.2 Carrera 1985

Last edited by easternjets on Wed Jan 08, 2020 6:43 pm; edited 1 time in total
 
  
View user's profile Send private message
   
Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15635
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Wed Jan 08, 2020 5:34 pm    Post subject: Reply with quote

easternjets wrote:
Some people have been known to kicked off Spa for exceeding the noise limit, it 'might' have been me but I think the culprit is lurking on this thread!!
With a db of 132 registered the next day at Dinslaken even the disguise didn't help his case.



Floor Floor oops Judge Cop eh! Grin Its now 134db mate with the new cargraphic cats, so I promise to use the valves next time and switch it into quiet mode Cool Laughing
_________________
911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 



39982822_1662203833906647_3800536025298632704_o.jpg
 Description:
 Filesize:  314.98 KB
 Viewed:  493 Time(s)

39982822_1662203833906647_3800536025298632704_o.jpg


  
View user's profile Send private message
   
Thefinn
Suzuka


Joined: 11 Jun 2014
Posts: 1125
Location: Essex


PostPosted: Wed Jan 08, 2020 7:50 pm    Post subject: Reply with quote

Hovis wrote:
Thanks all for advice so far and sorry if missed Cargeaphic in the poll.

I’ve been listening to any videos I can find to check out the exhaust notes. @phil thanks for posting this one up.

The top gear system seems pretty good value, a tad more than the Designtek but some great feedback from real world use.

In terms if the fob think Id much prefer a button in the car, but suppose would just keep the fob in the car.

Practically the switchable system could I can see might be beneficial on longer trips.

@thefinn - do you see any loss in low end torq with the cross over cars?
Had read many mixed reviews on The TB, but thinking as it’s a 3.6 increase maybe noticeable vs 3.8s


I felt no loss of torque with the cross overs and also went for these rather than the x pipe for that reason
_________________
997.1 C4S CAB

The Finn's 997 4S progress thread take two
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum