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NLW73
Suzuka


Joined: 27 May 2014
Posts: 1133
Location: Yateley


PostPosted: Tue Feb 20, 2018 9:21 pm    Post subject: cheapo ebay manfiolds Reply with quote

anyone taken off oem manifolds and run these with say a top gear exhaust and 200 cell cats?

sth like this: https://www.ebay.co.uk/itm/STAINLESS-STEEL-RACE-SPORT-EXHAUST-MANIFOLDS-FOR-PORSCHE-911-996-3-4-3-6-CARRERA/152817289332?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

I think I read someone has been running them for a few years with no issues and some perf gains

looking at the Dansk boxes earlier and the piping looks shagged already around the bends and thinking just go top gear SS all the way

I read on here that someones Dansk system lasted them a few years tops then was junk!
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Scholester
Suzuka


Joined: 16 Jan 2012
Posts: 1016
Location: South West


PostPosted: Tue Feb 20, 2018 10:00 pm    Post subject: Reply with quote

I put the Turbo version on my car (probably all made in the same factory) and I can't fault them for the money. I have kept my originals also should I ever need to refit. I would say go for it and treat yourself to some nice Ti bolts/studs too. Thumb
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13319
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Tue Feb 20, 2018 11:00 pm    Post subject: Reply with quote

I've had them on for over 3 years now and they're fine. Poppopbangbang had something to say about them, to quote:

poppopbangbang wrote:
The Chinese ones on e-bay are actually a copy of the FVD 3.4 equal length ones. I have a set here that I got hold of as an in case of emergency option and they are actually pretty good! Ten minutes with the flap wheel to clean up some internal surfaces and they are likely to perform no different to the FVD items currently on the car.

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Phil 997
Brands Hatch
Brands Hatch


Joined: 05 Dec 2015
Posts: 13254
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Tue Feb 20, 2018 11:13 pm    Post subject: Re: cheapo ebay manfiolds Reply with quote

NLW73 wrote:
anyone taken off oem manifolds and run these with say a top gear exhaust and 200 cell cats?

sth like this: https://www.ebay.co.uk/itm/STAINLESS-STEEL-RACE-SPORT-EXHAUST-MANIFOLDS-FOR-PORSCHE-911-996-3-4-3-6-CARRERA/152817289332?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

I think I read someone has been running them for a few years with no issues and some perf gains

looking at the Dansk boxes earlier and the piping looks shagged already around the bends and thinking just go top gear SS all the way

I read on here that someones Dansk system lasted them a few years tops then was junk!


Yes Alex had issue with his Dansk and the service and support was abysmal ,hes running top gear now Thumb
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13319
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Tue Feb 20, 2018 11:15 pm    Post subject: Reply with quote

and they're bob on!! thumbsup
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Norfolk & Idea
Suzuka


Joined: 15 Jan 2016
Posts: 1249
Location: South Yorkshire


PostPosted: Wed Feb 21, 2018 6:45 am    Post subject: Reply with quote

We all cast a suspicious eye over cheap Chinese copies. And not without foundation in a lot of cases.
I run a Ducati 1098R track bike and I holed the rad one day. When I checked with Ducati they were 650 notes!! A friend told me he'd fitted a Chinese copy for 100 quid so I did likewise. And it's been absolutely fine.
I had the original rad reconditioned and now carry as a spare thumbsup
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eabeukes
Newbie


Joined: 30 Jan 2018
Posts: 48


1999 Porsche 996 Carrera 2

PostPosted: Wed Feb 21, 2018 10:16 am    Post subject: Reply with quote

I recently had some SS ones from Design911 fitted (supplied by the former owner FOC, thanks!) and there is a definate reduction in noise (I have non-Gundo Dansk boxes). The old set of manifolds droned between 55-75 so badly that my wife didnt want to drive in the car with me. Now we can actually have a conversation, and a decent snarl comes out over 3.5k RPM's which is perfect (for me)

As Norfolk & Idea said - we're all suspect of the CHinese ones, but some stuff can be the same or better than the original's.
 
  
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13319
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Wed Feb 21, 2018 10:20 am    Post subject: Reply with quote

I'll put a grand on it the design911 ones either come from China or some of the materials do.
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g911omr
Monza


Joined: 29 Sep 2009
Posts: 191



PostPosted: Wed Feb 21, 2018 10:46 am    Post subject: Reply with quote

The PO fitted some nice shiny stainless manifolds to my car. They came from a company called IPE. They make some smart looking stuff.
 
  
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NLW73
Suzuka


Joined: 27 May 2014
Posts: 1133
Location: Yateley


PostPosted: Wed Feb 21, 2018 1:49 pm    Post subject: Reply with quote

have ordered up and will give em a try. thanks for the inputs chaps.

you do need to buy head bolts as well

Porsche OEM part number is 900 378 131 00 and 12 of em.

m8/28 standard fitment so most places should carry them and not have the P tax.
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13319
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Wed Feb 21, 2018 1:57 pm    Post subject: Reply with quote

just make sure you get marine grade stainless steel bolts.
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eabeukes
Newbie


Joined: 30 Jan 2018
Posts: 48


1999 Porsche 996 Carrera 2

PostPosted: Wed Feb 21, 2018 5:44 pm    Post subject: Reply with quote

Or get your titanium ones from a member here: http://www.porschetistuds.co.uk/
 
  
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NLW73
Suzuka


Joined: 27 May 2014
Posts: 1133
Location: Yateley


PostPosted: Thu Feb 22, 2018 11:56 am    Post subject: Reply with quote

snakes alive. some shiny bits have turned up. going on next week and will report back on any sound change or performance improvement beyond the placebo!
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Sundayjumper
Spa-Francorchamps


Joined: 17 Mar 2009
Posts: 269
Location: Royal Berkshire

1999 Porsche 996 Carrera 2

PostPosted: Thu Feb 22, 2018 12:53 pm    Post subject: Reply with quote

Watching with interest. Mine need doing soon.
 
  
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Gooey36
Trainee


Joined: 23 Aug 2017
Posts: 58



PostPosted: Wed Feb 28, 2018 7:26 pm    Post subject: Reply with quote

alex yates wrote:
I'll put a grand on it the design911 ones either come from China or some of the materials do.


I bought the toyosport manifolds to go with some new “Predator Styling” backboxes sold through ECP which are in fact DesignTek Supremacy boxes. Rang the company and the chap I spoke to said they make them for DesignTek (which is a design911 brand isnt it?) under licence.

All being fitted on the 10th March along with some refurbed (aluminise coated) cats. Will post some pics up when done.

The “cheap” manifolds look great, neatly welded, and confirmed by XRF that the material is as advertised (correct composition of substrate and weld wire) etc - can’t comment on fitment yet...will pop some pics up when done.

Nothing wrong with material from anywhere so long as it’s correct!
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TopGear Exhausts
Approved Trader


Joined: 22 Feb 2018
Posts: 55
Location: Bridport, UK


PostPosted: Mon Mar 05, 2018 8:06 pm    Post subject: Reply with quote

Dotting for interest.

We've actually found the cheapo manifolds to be pretty good, have removed a few of those on installs. They can take a bit longer to get off the vehicle but generally they don't fail any faster than originals. YMMV.
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Slutters
Monza


Joined: 11 Jun 2014
Posts: 216



PostPosted: Tue Mar 06, 2018 9:52 am    Post subject: Reply with quote

Look like cheap thin walled rubbish to me
 
  
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13319
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Tue Mar 06, 2018 10:55 am    Post subject: Reply with quote

Heard it before:

Slutters wrote:
China crap, if they do fit properly i will be surprised. They will be made of thin walled 'stainless' and will probably crack like most of the china manifolds do.


Slutters wrote:
alex yates wrote:


'china crap' Floor


But they are Wink Your only kidding yourself if you think different.



Had mine on nearly 4 years now. I live in one of the dampest areas in the Uk, use the car everyday and it lives outside. Not had any problems as yet......unlike my DANSK sport back boxes that lasted just over 12 months.
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Gooey36
Trainee


Joined: 23 Aug 2017
Posts: 58



PostPosted: Tue Mar 06, 2018 2:53 pm    Post subject: Reply with quote

Slutters wrote:
Look like cheap thin walled rubbish to me


Just out of interest what thickness are the “expensive” manifolds fabricated in and what material is advertised?

I’ll measure/check mine and can confirm their composition - will happily post that up with pics prior to them going on this weekend.
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13319
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Tue Mar 06, 2018 2:55 pm    Post subject: Reply with quote

I did that when I bought mine. All claimed dimensions were correct.
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