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Stage 1 ยท Diesel

Land Rover Range Rover (L405) 2013-2020 4.4 SDV8 334bhp remap figures

Stock, this 2013-2020 Land Rover Range Rover diesel (4.4L) produces 334bhp and 700Nm. Our expected figures for a Stage 1 remap are 390bhp and 800Nm, an expected gain of up to 56bhp and 100Nm.

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Stage 1 remap figures

A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.

StockVanguard expectedExpected gain, up to
Power334 bhp390 bhp+56 bhp
Torque700 Nm800 Nm+100 Nm

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All maps at a glance

MapPowerTorqueExpected gain, up to
Stock334 bhp700 Nm
Stage 1Maximum software-only performance390 bhp800 Nm+56 bhp
+100 Nm
Stage 1 EcoPerformance with economy in mind376 bhp792 Nm+42 bhp
+92 Nm
Eco mapEconomy first372 bhp787 Nm+38 bhp
+87 Nm

Who is the Stage 1 map for?

  • Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
  • Daily and motorway drivers who want the engine to feel less strained at cruising speed.
  • Anyone who wants the biggest software-only change we list for this engine.

What this means for your Range Rover

Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.

The ECU recorded for this variant is a Bosch EDC17CP11. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.

We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.

Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.

Figures reviewed 22 October 2026.

Stage 1 questions

How much power does the Stage 1 map give the Land Rover Range Rover 4.4 SDV8 334bhp?

We expect 390bhp and 800Nm against 334bhp and 700Nm as standard: up to +56bhp and +100Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.

Does a Stage 1 remap need any extra parts on the Land Rover Range Rover 4.4 SDV8 334bhp?

No. Stage 1 is a software-only change to the ECU on an otherwise standard car.

Is there a gentler map than Stage 1 for this engine?

Yes, two. Stage 1 Eco is performance with economy in mind: 376bhp and 792Nm expected. The Eco map is economy first: 372bhp and 787Nm. Both still sit above the standard 334bhp and 700Nm.

Do I need to tell my insurer about a remap?

Yes. A remap is a modification, so you should declare it to your insurer.