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Lucifus

Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

Todays job - Straight through exhaust - Td5

So since I've had the 110 Td5 I've had the Alive stage 2 map with de-cat and centre box removal. I was only running the small rear silencer in the system and it sounded pretty good. Not too noisy at all except when flooring it.

I've been running a straight through 3" bore on my 200tdi 110 for a few years now and it's certainly not loud and sounds pretty mean. So today I thought I would give it a go and remove the rear section from my td5 all together.

Now I'm not a pro welder by any means so please don't start commenting on my welds

I've welded in a piece of stainless pipe as that's what I happened to ahve left in my metal scrap pile. I've also give it a quick coat of paint on the welds to hold off the rust.

The result -

Click image to enlarge

Click image to enlarge

I've taken it around the block and it seems ok. It's certainly a bit louder that my 200tdi but not obscene by any standards like a boy racer. It gives a meaningful growl under heavy acceleration and it fairly tame when cruising. I'm sure it's not to everyone taste. I'll run it for a bit like this and if I change my mind then I can always weld the silencer back on lol

Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated

7th May 2016 3:50pm

chinnus

Member Since: 24 Aug 2012
Location: UK
Posts: 119

be careful the turbo has enough back pressure to fire up!

10th May 2016 3:02pm

Fatboy Slim

Member Since: 04 Feb 2008
Location: Bridgend
Posts: 1006

The turbine in the turbo creates all the back pressure the engine will ever need. You just want to get rid of the gas once it's out of the turbo for performance and efficiency

Got a straight through on my 110 it sounds luuuush

10th May 2016 3:10pm

mk1collector

Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

Does anyone sell the rear section without the box? Ray
My build thread
http://www.defender2.net/forum/topic17615.html

10th May 2016 3:52pm

Lucifus

Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

Nobody sells one that I'm aware of

10th May 2016 4:04pm

1978

Member Since: 04 Aug 2015
Location: Lancashire
Posts: 519

I did the decat and middle box delete on mine a couple of weekends back, it has made a massive improvement to the vehicle and I'm really pleased I did it. It does sound superb, but its pretty loud..... does the backbox delete not make it TOO loud?

10th May 2016 4:15pm

Lucifus

Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

It does make it a bit louder 😀

10th May 2016 4:20pm

Lucifus

Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

I unbolted the rear section and took it for a drive to gauge how loud it would be before I committed to cutting and welding.

10th May 2016 4:22pm

miker

Member Since: 13 Sep 2015
Location: Surrey
Posts: 1762

I have a welder. And a td5. I may have to remove my middle box! Also a '99 so no cats in the way either!

10th May 2016 6:09pm

Super7

Member Since: 05 Feb 2014
Location: South Bucks.
Posts: 131

I've been thinking of removing my middle box as its so big every time I go off roading it grounds out

The rear box also looks a bit vulnerable but I've not clouted it yet. '99 TD5 Defender 90
'52 Series 1 80"
'99 Caterham 7

10th May 2016 6:19pm

Lucifus

Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

You can buy off the shelf straight through centre boxes. It certainly sounds good with just the rear box only. The rear box takes it to the next level of growl.

10th May 2016 6:35pm

marsie

Member Since: 18 Nov 2011
Location: sheffieldish
Posts: 532

2010 Defender 110 Puma 2.4 XS CSW Galway Green

Done the same with my 110, not much louder without the rear bean can but a bit more pronounced turbo whistle

2000 90 TD5,galv chassis, d2 axles ,Bas remap , alisport intercooler , d2 transfer box , side windows-more to come-much more!! *GONE*
2004 110 TD5 Double cab. *GONE*
2010 110 2.4 XS station wagon

16th May 2016 9:38pm

chinnus

Member Since: 24 Aug 2012
Location: UK
Posts: 119

can you post a video of the growl lucifus?

Tom

17th May 2016 5:05pm

Lucifus

Member Since: 29 Jan 2016
Location: U.K.
Posts: 52

It's been a few weeks and I've driven it a few hundred miles. I've come to the conclusion that it's a lot louder on the outside than I thought. Had a few friends follow me with their windows open and they commented that it sounded loud when booting it but awesome! Under mild acceleration and cursing it's fine. Under full throttle full boost it's a beast.

Sorry although I have a go pro I don't have a mount to attach to the outside of the car.

7th Jun 2016 9:20pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2601

I have not had such good results with my 110 TD5.

I removed the CAT and fitted a straight through pipe, it did seem a bit better as in not actually any faster but the turbo spooled up quicker.

However when on the motorway there was a fairly loud resonance/drone at 65-70 mph which was tiring after a while, so l ended up refitting the CAT.

The rest of the exhaust is standard and 11 years old, so l wonder if my silencers are OK? As nobody else has complained of this issue after CAT removal.

17th Jun 2016 6:31pm

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