Peter Paprocki
Mar 2025
Great remap car feel great They fit me in on my lunch break 😁 and manged to do it asap
Posted on Google · view on our Google profileLand Rover Defender P400 L663 ECU Remapping
Stage 1 £599
Get my quote →The Land Rover Defender P400 L663 (2020 to Present) leaves the factory with 400 PS and 550 Nm from its 3.0 petrol engine. Our Stage 1 estimate takes it to 450 PS and 650 Nm, roughly 13% more power and 18% more torque.
Land Rover
ECU confirmed on inspection
Defender P400
L663 · 3.0
Stage 1 estimate
450 PS
STX Tuning
Stage 1 price
£599
Stage 1 ECU remap
Estimated gain
+50 PS · +100 Nm
Power
Torque
Figures are STX Tuning estimates for a healthy standard car, not a dyno result for your vehicle. Power is shown in PS. These are existing vehicle library estimates, not independently measured results.
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What we do
From Stage 1 and Stage 2 ECU remapping to gearbox tuning and supporting performance upgrades, STX Tuning offers specialist vehicle software and tuning services for compatible petrol and diesel cars and vans.
Explore the available options for your exact vehicle at our Slough workshop, with suitable mobile ECU remapping appointments available across selected surrounding areas.
Not sure which tuning service you need?
Tell us what you drive and what you'd like to achieve. We'll check your vehicle and help you explore the available options.
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