 | Home > Maintenance & Modifications > 90 td5/tdci mid pipe exhaust fit |
 
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| Retroanaconda Member Since: 04 Jan 2012 Location: Scotland Posts: 2789  
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Front one is just aft of the transfer box on the LH chassis rail. Rear one mounts on the A-frame crossmember.
Tdci has a different position rear mount to Td5 as the centre box is positioned further aft on the pipe to clear the handbrake drum (as LT230 is further aft in a Tdci than in a Td5). All the Tdci vehicles I have seen have had the rear mount welded onto crossmember whereas Td5 ones are bolted. Front mount here:  Click image to enlarge Rear mount (Td5 type shown): Click image to enlarge Difference in boxes showing differing rear mount position (Td5 top, Tdci bottom): Click image to enlarge |
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15th Sep 2025 5:45pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8493  
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That's great, thank you.
Front is same. Rear on mine seems to be further back, td5 mid pipe, plus the hanger comes off the back of the silencer rim as opposed to the pipework behind the silencer as your picture shows. Whole lot on mine seems further back though. Maybe I need a new mount on the pipe rather than the box. Will do some measuring. Cheers James 110 2010 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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15th Sep 2025 10:11pm |
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| DefenderCan Member Since: 25 Nov 2023 Location: Canada Posts: 60 
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better off with a full straight pipe, I would return. Really no difference compared with it on
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25th Oct 2025 10:02am |
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| el sid Member Since: 06 Sep 2025 Location: devon Posts: 31  
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Difference is, straight pipe, no silencer is illegal,im just about to fit a center silencer removing the straight through pipe.and im hoping it will be a bit quieter at least.The sound with a straight through exhaust is really loud,and makes every one look at me if i put my foot down!
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27th Oct 2025 8:39pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8493
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i have a straight through pipe fitted and removed it as firstly its too loud and secondly i think my system needs more resistance in the exhaust backflow Cheers James 110 2010 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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27th Oct 2025 9:43pm |
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| DefenderCan Member Since: 25 Nov 2023 Location: Canada Posts: 60
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the loudness i can agree. However back pressure for the td5 is not necessary. The turbo provides plenty of backpressure, better to just upgrade the turbo than keep a restrictor but the cost is significant.
Ideally you want the most air DENSITY, in the combustion chamber. By doing so you want to exhaust as much or all gases in the chamber too allow the freshest air via intake in the chamber to get a quicker, smooth and cleaner combustion. This will give you better performance and spool the turbo quicker. next you would want to remap or upgrade the turbo for max performance but without you would be fine. |
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28th Oct 2025 5:50am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8493
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Ol, straight through pipe louder than needs to be, not great on longer trips for the ears. Picks up quick but overboosts and goes to reduced fueling. Mid silencer fitted, better on ears doesn't over boost. M57 230bhp. Cheers
James 110 2010 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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28th Oct 2025 10:13pm |
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| DefenderCan Member Since: 25 Nov 2023 Location: Canada Posts: 60
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I can confidently say I have never had an overboost issue since my straight through exhaust. I mean you could adjust the wastegate or add a boostbox. I have neither, I just time my shifts better.
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28th Oct 2025 10:35pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8493
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Well done. Cheers
James 110 2010 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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29th Oct 2025 6:39pm |
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| DefenderCan Member Since: 25 Nov 2023 Location: Canada Posts: 60
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provided your point, i would reinstall a silencer but if its okay, install a straight through resonator.
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30th Oct 2025 4:50pm |
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