displaying posts 1 to 16 of 16

Author Subject: high flow cats
pug-gti-6

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Location: welshpool

Registered: 21 Apr 2008

Posts: 254

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Post #1
what do people think of high flow cats?
have got a de-cat at the minute but am loosing power so am thinking of getting a highflow cat fitted.

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Posted 9th Jun 2008 at 23:36
pug-gti-6

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Registered: 21 Apr 2008

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Post #2
any 1 got any idea if high flow cats are any good?

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"if in doubt flat out"
Breaking 206 gti
Posted 15th Jun 2008 at 00:17
pedro_de_la_cruz

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Location: London

Registered: 14 Mar 2007

Posts: 2,555

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Post #3
losing power from fitting a decat...thats a first i think, which brand? maybe its fitted wrong, is it blowing anywhere?

if not then its probably something else bringing the power down, whats the induction side of things like?

when were spark plugs changed/oil/filters etc

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Posted 15th Jun 2008 at 00:22
m.bov6

Newbie

Location: windsor

Registered: 14 Jun 2008

Posts: 3

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Post #4
how come you are losing power from your de-cat?

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M.Bovingdon
Posted 15th Jun 2008 at 00:22
pug-gti-6

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Registered: 21 Apr 2008

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Post #5
i had a powerflow exhaust fitted and as my cat was f*cked i got them to cut it out and weld a pipe in its place. just really wanted to no if high flow cats gave any gains

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"if in doubt flat out"
Breaking 206 gti
Posted 18th Jun 2008 at 04:45
chas

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Location: Warwickshire

Registered: 31 Oct 2007

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Post #6
m.bov6 wrote:
how come you are losing power from your de-cat?


He may be referring to his mid-range punch, which is what normally decreases a small amount once a decat has been fitted.

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Ex Owner of 2000 Phase 3 306 GTi 6 China Blue - You shall be missed

1974 Triumph Stag
1989 Peugeot 205 GTi 1.6
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Posted 18th Jun 2008 at 15:00
tabbbster

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Location: Turriff

Registered: 04 Nov 2005

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Post #7
It feels ok with my Blueflame decat. Yes There is a stronger pull when you keep it on the cam. As for the induction side I am running a 76mm intake but the base of the K&N style cone 170mm and top of the filter 120mm, all housed inside a carbon airbox being feed with a 100mm cold air feed pipe.

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My Rallye was built on thursday 7th January 1999 according to the cosmic code generator.
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Posted 19th Jun 2008 at 05:02
rain man

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Location: Manchester

Registered: 29 Apr 2008

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Post #8
where did you buy your induction kit from tabbster? looks v nice

cheers

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Posted 29th Jun 2008 at 17:21
dazathon

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Location: Plymouth

Registered: 15 Jan 2006

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Post #9
rain man wrote:
where did you buy your induction kit from tabbster? looks v nice

cheers


He made it himself. Theres a post on here somewhere.Big grin

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Posted 4th Jul 2008 at 07:13
antn1.b

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Location: chichester

Registered: 31 Mar 2007

Posts: 1,413

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Post #10
high flow cats may give gains over standard but wont flow as well as a straight tube (de-cat) just a legal way to get the flow up a bit.
Posted 4th Jul 2008 at 07:59
aknight

Regular

Location: Stilton

Registered: 12 Dec 2002

Posts: 348

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Post #11
I've seen good gains with my setup.Devil De-cat with a 200 cell motorsport cat (for a nissan 200sx) poped in and a Jetex stainless system with K&N 571 at the front. Gives the odd pop and crackle and made 179hp on the rolling road, up from 171hp.

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Team 330mm.Team Rallye.
Posted 4th Jul 2008 at 09:20
ozpug

Regular

Location: Strathfield, Sydney

Registered: 08 Jul 2006

Posts: 216

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Post #12
pug-gti-6 wrote:
any 1 got any idea if high flow cats are any good?


I've just had one fitted this week and will send some picks over the weekend.

Compared to standard it was very noticeable straight away....but makes a shed load of noise until it "beds itself in".

________________________________________

Owned my Gti-6 from new, Astor Grey Phase 3..nuts!
Audi A3 2.0TDi Sportsback (The Monster!)
Posted 4th Jul 2008 at 20:04
benn25

Regular

Location: In the woods

Registered: 14 Jan 2009

Posts: 303

Status: Offline

Post #13
Thought I would reopen this thread to see if anybody knew any decent makes for an average price. Don't want to go too silly. Seen some on ebay but not sure. Hoffmann do some which Ive seen. Anyone fitted one of these?

Edit: Ive searched now and found what im looking for. Whistle
Posted 21st Apr 2011 at 16:03
mattyrallye

Seasoned Pro

Location: gillingham

Registered: 02 Nov 2007

Posts: 1,202

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Post #14
tabbbster wrote:
It feels ok with my Blueflame decat. Yes There is a stronger pull when you keep it on the cam. As for the induction side I am running a 76mm intake but the base of the K&N style cone 170mm and top of the filter 120mm, all housed inside a carbon airbox being feed with a 100mm cold air feed pipe.



Erghh look at those tatty hoseclips. Get some real Jubilee 304 clips on there!!!Razz

________________________________________

Previous china gti6 and Rallye owner.

Now a proud Astor Gti 6 owner.

Missing he BMW already...
Posted 28th Apr 2011 at 15:58
aaron6

Seasoned Pro

Location: On the sofa in maidstone

Registered: 16 May 2006

Posts: 5,840

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Post #15
Matt....... LOL

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Posted 2nd Jun 2011 at 04:42
vipergti

Junior User

Location: WARRINGTON

Registered: 10 Apr 2011

Posts: 69

Status: Offline

Post #16
Not had my 6 long and was totally standard but first on the agender was breathing and didnt want to go the de-cat rout 1 cos MOT issues, just had a longlife full system and sports cat and although its fookin loud at the mo its more responsive and got that bit extra grunt so happy as larry even though cost 800 Sad

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Posted 15th Jun 2011 at 20:51

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