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2096VC



Member Since: 08 Apr 2024
Location: Cumbria
Posts: 19
United Kingdom 
Expensive mistake - exhaust over estimation
I recently bought a TD5 90, and decided I’d like a little more noise. I thought putting a centre pipe delete was going to make a big difference. Today I removed the centre pipe and back box, and with the exhaust off I drove it off the ramps - I was shocked how little difference there was to the exhaust tone with no mid or tailpipe silencers - it sounded pretty much the same. Realised now I need a decat and straight pipe…now scouring the internet for suitable replacements!
Post #1036209 31st May 2024 9:28pm
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mini Anaconda



Member Since: 23 Aug 2016
Location: Thames Valley
Posts: 777
United Kingdom 
The cat seems to do most of the silencing on a Td5, removing the rear and centre box while leaving the cat makes little difference.

Decat, straight centre pipe and standard back box sounds good although I am sure you know that a decat is technically illegal and should fail the MOT. Completely straight through all the way is far too loud IMO. BORG - Bucks & Oxon 4x4 Response Group
Post #1036218 31st May 2024 10:18pm
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rustandoil



Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 735
England 2005 Defender 110 Td5 XS DCPU Bonatti Grey
Have a look at Demand exhausts... They are going to get my money... 👍🏻
Post #1036225 1st Jun 2024 6:04am
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MarkBrown



Member Since: 03 Oct 2022
Location: Mid Wales
Posts: 442
Wales 1983 Defender 110 Other HT Auto Keswick Green
I’ve had a few custom exhaust systems made, I was told that with a petrol engine the problem was not making them too loud and with a diesel they often struggle to get them loud enough.

A friend had a Td5 disco with no centre box and it was noisy, but I don’t think it had a catalytic converter.

There’s a guy who had a YouTube channel ( Boris the Defender ) who has a Demand system fitted to his tdi which sounds nice and also another channel ( The Kooks Group ) features a chap who’s fitted a td5 into a series 1, that sounds fantastic. It’s probably a home made system though.

Someone on here may well live close to you with something that you can see and have a ride along with.
Post #1036230 1st Jun 2024 8:36am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5642
2006 Defender 110 Td5 USW Zermatt Silver
You need to remove the CAT on the td5 and the Tdci to get any noise out of them. I’ve got a spare decat pipe in my garage, but the postage would kill any chance of a deal I would think.

A quality pipe has a better sound than a cheap/thin exhaust and if you want quality check out demand engineering.
Post #1036236 1st Jun 2024 9:35am
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2096VC



Member Since: 08 Apr 2024
Location: Cumbria
Posts: 19
United Kingdom 
Thanks for the replies. In all honesty I should have talked to my neighbours - 2 of them have TD5’s which are tuned. One of them doesn’t have a decant but has a Double S (?) sport exhaust - I thought that sounded ok - he said he has a standard downpipe but when I took all my exhaust off I realised it doesn’t matter what I add to my downpipe - it won’t make it sound “better”. My other neighbour has a decat straight through 3” exhaust - and it sounds great - I should have paid more attention to that in the first place!

Luckily - we have an understanding local MOT place that will not question the missing 🐈‍⬛
Post #1036265 1st Jun 2024 9:31pm
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2096VC



Member Since: 08 Apr 2024
Location: Cumbria
Posts: 19
United Kingdom 
mini Anaconda wrote:
The cat seems to do most of the silencing on a Td5, removing the rear and centre box while leaving the cat makes little difference.

Decat, straight centre pipe and standard back box sounds good although I am sure you know that a decat is technically illegal and should fail the MOT. Completely straight through all the way is far too loud IMO.


Decat downpipe, straight through mid box and a silenced back box is on the cards now.
Post #1036266 1st Jun 2024 9:33pm
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2096VC



Member Since: 08 Apr 2024
Location: Cumbria
Posts: 19
United Kingdom 
As a follow up - I did fit a decat down pipe, straight through centre, and a standard rear pipe - so one silencer overall - and it sounds perfect.
Post #1037657 17th Jun 2024 7:35am
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shaynecm



Member Since: 10 May 2024
Location: Norwich
Posts: 63
United Kingdom 
+1 for Demand.

https://shop.demandengineering.co.uk/product-category/td5/
Post #1037669 17th Jun 2024 8:45am
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mini Anaconda



Member Since: 23 Aug 2016
Location: Thames Valley
Posts: 777
United Kingdom 
2096VC wrote:
As a follow up - I did fit a decat down pipe, straight through centre, and a standard rear pipe - so one silencer overall - and it sounds perfect.


Is it anti-social load or sounding good without being OTT? BORG - Bucks & Oxon 4x4 Response Group
Post #1037688 17th Jun 2024 3:02pm
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