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Allan

Member Since: 09 Sep 2009
Location: Perth
Posts: 166

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black

Decat and centre muffler removal

I am thinking of doing away with the cat converter and centre muffler on my Puma. I did this with the wife's TD5 when i removed the egr and it seems all good. I've heared reports that the Puma doesn't like to run without a cat converter so thought I would check before buying the bits. At this stage the engine tune is standard but this will change in the near future.

Allan

20th Jul 2011 8:02am

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2638

2010 Defender 90 Puma 2.4 SW Alpine White

Re: Decat and centre muffler removal

Allan wrote:
I've heared reports that the Puma doesn't like to run without a cat converter so thought I would check before buying the bits.

Nah, any TD engine will run better without down-turbo restrictions. Where have you seen reports that the Puma does not like a decat? --
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
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Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

20th Jul 2011 10:14am

K9F

Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey

Re: Decat and centre muffler removal

Allan wrote:
I've heared reports that the Puma doesn't like to run without a cat converter so thought I would check before buying the bits. At this stage the engine tune is standard but this will change in the near future. Allan

I did away with rear box and cat as have several others. Allows the turbo to spool up quicker and the engine to breathe better! Plenty about it here:

http://www.defender2.net/forum/topic3204.html?highlight=griffin 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!!

20th Jul 2011 10:37am

Allan

Member Since: 09 Sep 2009
Location: Perth
Posts: 166

Re: Decat and centre muffler removal

Naks wrote:
Allan wrote:
I've heared reports that the Puma doesn't like to run without a cat converter so thought I would check before buying the bits.

Nah, any TD engine will run better without down-turbo restrictions. Where have you seen reports that the Puma does not like a decat?

On here, may be when tuned prior to exhaust change? Will go ahead and order the bits I think.

Allan

20th Jul 2011 2:39pm

Bomber82

Member Since: 20 Oct 2009
Location: Alessandria - Italy
Posts: 216

2009 Defender 110 Puma 2.4 SW Zermatt Silver

I've removed cat and midle silencer, great sound and better response at low range both with standard and tuned ECU!

Matteo
Defender 110 Td4 SE MY 09

20th Jul 2011 3:50pm

Dave-H

Member Since: 08 Feb 2011
Location: Surrey
Posts: 1507

2007 Defender 90 Puma 2.4 HT Tonga Green

Bomber82 wrote:
I've removed cat and midle silencer, great sound and better response at low range both with standard and tuned ECU!

Ditto

Guns and Landrovers .... anything else is irrelevant.

20th Jul 2011 7:43pm

Allan

Member Since: 09 Sep 2009
Location: Perth
Posts: 166

Thanks for the help

Allan

21st Jul 2011 2:48am

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