 | Home > Modifications & Maintenance (L663) > Tuning remap to D350 |
 
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| Defendit.. Member Since: 09 Aug 2020 Location: 's-Hertogenbosch Posts: 474  
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Drive to Nottingham
https://ttw-installations.co.uk/product/de...rformance/ No Mud flaps for my 90.! ----------------------------------------- P300S MY21 Keswick Green on air, adv.+ offroad pack, DRL+fog, Dinamica Suedecloth + Ebony headliner/Cross Beam- Many Mods.. |
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24th Sep 2025 8:56am |
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| Japseroony Member Since: 02 Jan 2008 Location: North East England Posts: 852  
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Not convinced the D200 to D350 is as straight forward as you think as from memory it’s not just a tune that is required - some mechanical work may also be required and changing of components
 Gas, Grass Or Ass - Nobody Rides For Free
"UNDERSTEER" ----is when you hit the fence with the front of the car. "OVERSTEER" ------is when you hit the fence with the rear of the car. "HORSEPOWER" ----is how fast you hit the fence. "TORQUE" -----------is how far you take the fence with you. |
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24th Sep 2025 5:48pm |
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| Jamundo86 Member Since: 24 Oct 2023 Location: Northamptonshire Posts: 25 
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Prices do vary a fair amount, similar to those offering CCF activations for things like ACC and dynamic mode - range from £50-300 for each from a lot of places
For those it's worth getting the GAP tool or the JetPro software, the latter of which can do the power upgrades I believe too |
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26th Sep 2025 1:51pm |
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| lightning Member Since: 23 Apr 2009 Location: High Peak, Derbyshire Posts: 3526
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l think you can upgrade the D200 to 300hp but not 350.
Still a worthwhile increase in power. |
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26th Sep 2025 4:00pm |
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| Jamundo86 Member Since: 24 Oct 2023 Location: Northamptonshire Posts: 25
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There is at least one company offering the 350 upgrade for pre MY25...
Last edited by Jamundo86 on 26th Sep 2025 5:50pm. Edited 1 time in total |
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26th Sep 2025 4:22pm |
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| lightning Member Since: 23 Apr 2009 Location: High Peak, Derbyshire Posts: 3526
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From the D200? That's quite a step up, 75% more bhp
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26th Sep 2025 5:49pm |
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| Jamundo86 Member Since: 24 Oct 2023 Location: Northamptonshire Posts: 25
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Potentially slightly different cooling systems but the engine itself is mechanically identical I understand
No different to other manufacturers who map up/down based on models, but certainly allows for a bit of headroom if looking to increase outputs and some of the gains from factory spec are enormous |
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26th Sep 2025 5:54pm |
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| Japseroony Member Since: 02 Jan 2008 Location: North East England Posts: 852
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I’m sure I’ve read somewhere the turbo/turbos are different but hey the folk using a hacked Pathfinder would know - would stay away from a non genuine tune, ok not from a LR dealership but an actual D300/350 map etc. Gas, Grass Or Ass - Nobody Rides For Free
"UNDERSTEER" ----is when you hit the fence with the front of the car. "OVERSTEER" ------is when you hit the fence with the rear of the car. "HORSEPOWER" ----is how fast you hit the fence. "TORQUE" -----------is how far you take the fence with you. |
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26th Sep 2025 6:03pm |
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| MisterZ Member Since: 12 Mar 2025 Location: Meerbusch Posts: 14 
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You can Upgrade from D200 to D250 with just Software changes. With D300 comes a auxiliary cooler on the front side.
So with that in mind, from D300 to D350 is also just a software change. New Defender 110 D200 S | Freelander 2 SD4 Metropolis |
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27th Sep 2025 5:46am |
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| lightning Member Since: 23 Apr 2009 Location: High Peak, Derbyshire Posts: 3526
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l ordered a D200 back in January 2022 as it was fine for my needs. After a few months waiting (delivery was quoted as 12 months) the dealer told me l could not have the D200 as it was "not currently available" and l would have to have the D250....take it or leave it. The cost was an extra £3,000, a nice little LR earner for a few lines of code. The D250 is great but after what l paid, your quotes are a bargain!! |
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27th Sep 2025 9:28am |
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| Japseroony Member Since: 02 Jan 2008 Location: North East England Posts: 852
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That as maybe but the OP is wanting to go from a D200 to a D350 Gas, Grass Or Ass - Nobody Rides For Free
"UNDERSTEER" ----is when you hit the fence with the front of the car. "OVERSTEER" ------is when you hit the fence with the rear of the car. "HORSEPOWER" ----is how fast you hit the fence. "TORQUE" -----------is how far you take the fence with you. |
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27th Sep 2025 11:14am |
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| A1C6 Member Since: 15 Oct 2024 Location: Australia Posts: 108 
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I’m pretty sure the D200 is a I4 while the D250,300,350 are an I6. Therefore, you can’t upgrade it into a ‘true’ D350. But I guess you could upgrade it into 350 hp if the engine permits in terms of strength. MY25.5 110 OCTA First Ed. P635
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27th Sep 2025 11:26pm |
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| ruben Member Since: 04 Feb 2021 Location: ASTURIAS Posts: 381 
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No, you are wrong!! D200 is not a I4, it’s a I6 too!! …in another order of things…These guys, Venture Automotive, in Bolton claim to do it, to everyone from D200, D250 or D300 and also remotely anywhere in the world!!
 Click image to enlarge Defender 110 SE I6 D250 23MY ExDiscovery 3 TDV6 SE |
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28th Sep 2025 2:02am |
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| A1C6 Member Since: 15 Oct 2024 Location: Australia Posts: 108
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Oh, my bad. Thanks for letting me know! D240 must’ve been the only diesel I4 then MY25.5 110 OCTA First Ed. P635
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28th Sep 2025 11:41am |
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