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BruceT



Member Since: 01 Nov 2010
Location: South Africa
Posts: 516
South Africa 
Decat - is it worth it?
Hi all.

Recently fitted a larger intercooler and have heard that a decat also does wonders.
Please let me know what you think.

I also heard that some Pumas for some markets don't have cats. Can anyone confirm this?

Thank you
Post #173216 4th Oct 2012 8:23pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731
Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
I am also very interested if someone has done a proper comparison.
I read somewhere on here that the Aussies have original LR cat pipes but with no cat inside - I'm trying to decide whether it's worth risking a prison sentence to fit one here in Germany... Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #173233 4th Oct 2012 9:16pm
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T1G UP



Member Since: 08 Dec 2009
Location: Bath
Posts: 3101
England 2011 Defender 110 Puma 2.4 XS CSW Orkney Grey
i've smashed the cat out of mine! just got to sleeve the inside and fit Thumbs Up want it undetectable Big Cry

I beleieve it will make a decent difference, and will justify the effort
Post #173238 4th Oct 2012 9:26pm
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RobKeay



Member Since: 19 Jul 2009
Location: Stafford
Posts: 1567
United Kingdom 2014 Defender 110 Puma 2.2 USW Corris Grey
I have a unfitted de cat pipe for a 2.4 if anyone wants to buy one.
Post #173259 4th Oct 2012 10:04pm
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Lou Sparts



Member Since: 15 Apr 2012
Location: Kent
Posts: 1501
United Kingdom 2005 Defender 90 Td5 XS CSW Zambezi Silver
Prison sentence ? 2005 Td5 90 XS

Steve
Post #173260 4th Oct 2012 10:04pm
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T1G UP



Member Since: 08 Dec 2009
Location: Bath
Posts: 3101
England 2011 Defender 110 Puma 2.4 XS CSW Orkney Grey
RobKeay wrote:
I have a unfitted de cat pipe for a 2.4 if anyone wants to buy one.


i picked one up to modify
Post #173261 4th Oct 2012 10:07pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731
Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Lou Sparts wrote:
Prison sentence ?

Okay - I was overdramatising a bit Rolling Eyes but f*cking about with emission-related parts is taken VERY seriously here, as in: vehicle impounded, heavy fines, points on/losing license etc.
That's why an original LR pipe missing its bits would be the only possibility for me Big Cry Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #173275 5th Oct 2012 12:02am
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T1G UP



Member Since: 08 Dec 2009
Location: Bath
Posts: 3101
England 2011 Defender 110 Puma 2.4 XS CSW Orkney Grey
ZeDefender wrote:
Lou Sparts wrote:
Prison sentence ?

Okay - I was overdramatising a bit Rolling Eyes but f*cking about with emission-related parts is taken VERY seriously here, as in: vehicle impounded, heavy fines, points on/losing license etc.
That's why an original LR pipe missing its bits would be the only possibility for me Big Cry


same here Whistle
Post #173299 5th Oct 2012 8:13am
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731
Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Bloody EU Laughing Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #173301 5th Oct 2012 8:18am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610
United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Re: Decat - is it worth it?
BruceT wrote:
Hi all. Please let me know what you think. Thank you


Bruce, Ze....Follow my link in the first post of the thread below, plenty of information there.... Thumbs Up

http://www.defender2.net/forum/topic7482.html?highlight=spool If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #173310 5th Oct 2012 8:39am
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BruceT



Member Since: 01 Nov 2010
Location: South Africa
Posts: 516
South Africa 
Thanks K9F
Post #173316 5th Oct 2012 8:53am
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The Boy



Member Since: 28 Aug 2008
Location: East Northants
Posts: 1459
United Kingdom 2009 Defender 110 Puma 2.4 XS CSW Rimini Red
Bruce

I de-catted mine and replaced it with stainless steel system made to my spec. It was without doubt the best mod I have done. Not boy racer noisy and does not drone while cruising on the motorway. It now runs much better than it did before both with tune in and tune out, in fact I don’t use the tune now as it never really ran right anyway and the exhaust makes mine feel much better in the way it drives. It has one centre box that is tucked up slightly higher than the original but no rear. For a four pot donk it also sounds quite good (but a long way from a TD5). We travelled to London the other week and we kept to a leisurely 60mph while on the motorways due to the traffic and it returned 32 mpg which is the best I have ever had with my average over the last three years being 24.54mpg (half with roof rack on). Pound for pound it wasn’t cheap but was a lot less than some performance upgrades I have had and this does seem to have had a positive result in the way it drives.

Boy
Post #173323 5th Oct 2012 9:38am
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pope10001



Member Since: 15 Oct 2011
Location: Dulverton
Posts: 489
United Kingdom 1992 Defender 90 200 Tdi HT Zermatt Silver
Definitely worth it, one of the best mods I have done. The engine just seems to breath much easier.
Post #173324 5th Oct 2012 9:42am
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2599
South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Bruce, ROW spec should not have a cat, but the ones in SA do, so go figure.

As soon as the warranty period is over, I'm de-catting and also removing the centre silencer box. Depending on Xmas splurges, I may even have enough left around for an Alive intercooler Thumbs Up --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #173326 5th Oct 2012 9:45am
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Norm4n



Member Since: 31 Aug 2012
Location: Surrey
Posts: 329
United Kingdom 
The Boy wrote:
Bruce

I de-catted mine and replaced it with stainless steel system made to my spec. It was without doubt the best mod I have done. Not boy racer noisy and does not drone while cruising on the motorway. It now runs much better than it did before both with tune in and tune out, in fact I don’t use the tune now as it never really ran right anyway and the exhaust makes mine feel much better in the way it drives. It has one centre box that is tucked up slightly higher than the original but no rear. For a four pot donk it also sounds quite good (but a long way from a TD5). We travelled to London the other week and we kept to a leisurely 60mph while on the motorways due to the traffic and it returned 32 mpg which is the best I have ever had with my average over the last three years being 24.54mpg (half with roof rack on). Pound for pound it wasn’t cheap but was a lot less than some performance upgrades I have had and this does seem to have had a positive result in the way it drives.

Boy


Hi who made your s/s exhaust?
Post #173363 5th Oct 2012 1:09pm
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