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Peterwat

Member Since: 22 Jan 2017
Location: Shepparton
Posts: 15

Exhaust suggestions for Defender Puma 90 2.4

Hi all,
I have a DP chipped Puma 2.4 90 series and would like to fit a exhaust, 2 reasons for this is maybe get better performance but more importantly get a bit of a note to the engine. What I have done too date is to remove the muffler and resonator to test what she sounded like...result ..nothing it sounded almost exactly the same.
Anyone out there been able to improve on engine note or better still recommend an exhaust.
thanks,
Peter

17th Jan 2018 2:15am

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784

I think you will find for best results you need to remove the catalytic converter

2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton

17th Jan 2018 7:52am

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2586

2010 Defender 90 Puma 2.4 SW Alpine White

Yep, remove the cat, and if you want a louder exhaust noise, cut out the centre silencer box and replace with a straight pipe

--
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

17th Jan 2018 7:57am

Peterwat

Member Since: 22 Jan 2017
Location: Shepparton
Posts: 15

My local exhaust practitioner is a coward, is the cat conv a combination with DPF? If yes he refuses to remove

17th Jan 2018 10:59am

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

2008 Defender 90 Puma 2.4 CSW Bonatti Grey

No DPF on a 2.4 just the Cat.

I’m running a straight through system on my 2.4 just with the standard rear silencer in place, still not that noisy but does sound nice under load. 80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.

17th Jan 2018 11:29am

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6031

Then in 9 months time, change it back to standard because you keep getting a headache from the droning....

My Td5 was like this... went back to standard and got no reduction in performance.

17th Jan 2018 10:07pm

ian series 1

Member Since: 17 Nov 2014
Location: south
Posts: 3127

Mines ok on a run, you only notice the exhaust note if you have the passenger window down,
Been like that for nearly 4 years now.

80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.

17th Jan 2018 10:16pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784

My Td5 gets on my nerves every few months. I put the silencer back in, am amazed how quiet it is, get bored after a few weeks, then put straight through back on. Then repeat

17th Jan 2018 11:13pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784

Can do a centre exhaust section change in about 10 minutes now including getting the tools

17th Jan 2018 11:14pm

Peterwat

Member Since: 22 Jan 2017
Location: Shepparton
Posts: 15

Is there anything available of the sheld here in Oz,preferably in Victoria or online. Btw thanks for the info so far

18th Jan 2018 5:41am

Peterwat

Member Since: 22 Jan 2017
Location: Shepparton
Posts: 15

Correction

Meant to say "off the shelf"

18th Jan 2018 5:42am

pannawonica

Member Since: 21 Nov 2010
Location: Clackline Western Australia
Posts: 568

I got my centre box pipe from rovacraft, it fitted ok but was a little too long. My thinking it was a generic TD5 one about $90 at the time! However the stainless decat pipe kit came from Alive and was excellent in every way. In addition with the 175hp remap and ultimate intercooler plus silicon pipes. The cat as said for a better sound has too go, this is also a great benefit for heat mitigation with other mods!

19th Jan 2018 2:25am

Peterwat

Member Since: 22 Jan 2017
Location: Shepparton
Posts: 15

Thanks all.

19th Jan 2018 9:18pm

Peterwat

Member Since: 22 Jan 2017
Location: Shepparton
Posts: 15

A couple of post suggest that the cat converter can have the guts bashed out so it is straight through then the centre muffler can be simply replaced with a straight pipe,apparently this modification is pretty cheap and the centre muffler can simply be refitted when or if required

20th Jan 2018 5:36am

Peterwat

Member Since: 22 Jan 2017
Location: Shepparton
Posts: 15

I've removed the cat pipe, all I can see in there is what looks like insect screen. Where is the white substance that one just "bashes out" as discussed on another forum.
Have I been snowed

21st Jan 2018 3:08am

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