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#395530 - 31/01/12 10:25 AM Swapping Decat for Standard Cat
Ashley6 Offline



Registered: 12/06/11
Posts: 2777
How much power/torque would I lose on average?

Sports cats are too much money, would rather spend that on other things!

So if I was to lose my decat out of my 4-2-1/decat/non resonated system what would i lose in power?

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#395531 - 31/01/12 10:28 AM Re: Swapping Decat for Standard Cat [Re: Ashley6]
DanRedSt Offline
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Registered: 04/06/10
Posts: 4733
Loc: Chatham, Kent
Decat can be as much as 10bhp I think so it would be slightly noticeable. Just save and get the sports cat they're great
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Colorado Red 07 Plate ST

Mountune CAIS - 60mm Throttle Body - Full Resonated Milltek System - Bilstein B12's - 300mm front discs - Gloss Black Team Dynamics Pro Race 3's - Tints - Red-Black DMB Badges and loads of eBay stuff...

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#395532 - 31/01/12 10:46 AM Re: Swapping Decat for Standard Cat [Re: DanRedSt]
Ashley6 Offline



Registered: 12/06/11
Posts: 2777
Ahh damn That is quite a lot...

How much will a sports cat give?

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#395533 - 31/01/12 11:14 AM Re: Swapping Decat for Standard Cat [Re: Ashley6]
ST_Lee Offline
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Registered: 17/09/08
Posts: 8873
Loc: Blackpool
I saw 10bhp increase with a remap and sports cat added to an existing system that had a standard cat. Sports cat is probably roughly mid way between standard and decat...
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#395534 - 31/01/12 03:24 PM Re: Swapping Decat for Standard Cat [Re: ST_Lee]
Ashley6 Offline



Registered: 12/06/11
Posts: 2777
http://www.ebay.co.uk/itm/2-5-63mm-Dia-L...=item2a18188ae9

Would this work?

I want something I can change over quite easily myself if possible

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#395535 - 31/01/12 03:35 PM Re: Swapping Decat for Standard Cat [Re: Ashley6]
Duff Offline
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Registered: 01/01/10
Posts: 2986
Loc: Flanders, Belgium
Sports cat shouldn't lose power compared to decat, at least that's what i've been told
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#395536 - 31/01/12 04:00 PM Re: Swapping Decat for Standard Cat [Re: Ashley6]
hjb1991 Offline


Registered: 09/04/11
Posts: 80
Loc: Northamptonshire
Quote:

http://www.ebay.co.uk/itm/2-5-63mm-Dia-L...=item2a18188ae9

Would this work?

I want something I can change over quite easily myself if possible



I'm guessing not, as it says not legal on vehicles after 2001...
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'06. 57i, Roose hoses, Milltek 4-1 manifold, -35mm I wanna go fast!

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#395537 - 31/01/12 04:04 PM Re: Swapping Decat for Standard Cat [Re: Duff]
Ashley6 Offline



Registered: 12/06/11
Posts: 2777
I might just stick my standard cat on!

It's a lot of effort I don't like that most of the sports cats are more than the cat backs!

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#395538 - 31/01/12 11:00 PM Re: Swapping Decat for Standard Cat [Re: Ashley6]
Adam08 Offline
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Registered: 15/10/08
Posts: 15118
Loc: Harpenden, Hertfordshire
A sport cat is cheaper than a standard cat (I presume you still have the standard cat though)

Just depends on your effort of swapping it over or finding an MOT friendly place
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407BHP and 340lbft
TD GT28/32 hybrid turbo, 3inch decat, 2.75inch exhaust, air intake + large MAF, injectors, fuel pump, tubular manifold

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#395539 - 31/01/12 11:33 PM Re: Swapping Decat for Standard Cat [Re: Adam08]
Dopeo Offline


Registered: 09/01/11
Posts: 676
Loc: Liverpool
No loss of power for sports cat!!! and a noticeable difference between a cat and a decat sooooo buy a sports cat!!!! plus u will get fined ,if found by vosa, with a decat!!!
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#395540 - 31/01/12 11:38 PM Re: Swapping Decat for Standard Cat [Re: Dopeo]
LiestaST Offline
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Registered: 28/09/11
Posts: 2345
Get a sports catttttttttttttttttttttt. they're not 'too' expensive.

Nice avatar btw Dopeo

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#395541 - 31/01/12 11:41 PM Re: Swapping Decat for Standard Cat [Re: LiestaST]
Ashley6 Offline



Registered: 12/06/11
Posts: 2777
Where are these cheap sports cats? The only ones I can find are £350+!!

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#395542 - 31/01/12 11:42 PM Re: Swapping Decat for Standard Cat [Re: Ashley6]
LiestaST Offline
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Registered: 28/09/11
Posts: 2345
I never said they were cheap hah, just said not 'too' bad. Mine was £331 :L

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#395543 - 01/02/12 12:15 AM Re: Swapping Decat for Standard Cat [Re: LiestaST]
Dopeo Offline


Registered: 09/01/11
Posts: 676
Loc: Liverpool
Get a custom one done for around £250!!!

Thanks liesta that was created on an iPhone app!! The sig was done on ps!
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#395544 - 02/02/12 12:28 PM Re: Swapping Decat for Standard Cat [Re: Dopeo]
Adam08 Offline
Site Supporter

Registered: 15/10/08
Posts: 15118
Loc: Harpenden, Hertfordshire
Quote:

No loss of power for sports cat!!! and a noticeable difference between a cat and a decat sooooo buy a sports cat!!!! plus u will get fined ,if found by vosa, with a decat!!!



Of course there is a loss of power from a sports cat, it's a restriction over a decat, not as big as the standard cat, but still a restriction
_________________________


407BHP and 340lbft
TD GT28/32 hybrid turbo, 3inch decat, 2.75inch exhaust, air intake + large MAF, injectors, fuel pump, tubular manifold

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