Land Rover Range Rover / Sport 2012 - 2018 (L405) 4.4 SDV8 339hp

Real standard and upgraded performance figures for the 4.4 SDV8 339hp engine in the Land Rover Range Rover / Sport 2012 - 2018 (L405).

The Land Rover Range Rover / Sport 2012 - 2018 (L405) 4.4 SDV8 339hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.

Horsepower (HP)Torque (Nm)
Standard339740
Stage 1390820
Stage 2415860
Make
Land Rover
Model
Range Rover / Sport
Generation
2012 - 2018 (L405)
Engine
4.4 SDV8 339hp
Fuel type
Turbo-Diesel

Frequently asked questions

Is Stage 1 tuning safe for the Land Rover Range Rover / Sport 2012 - 2018 (L405) 4.4 SDV8 339hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the 4.4 SDV8 339hp make after tuning?

Standard output is 339 HP / 740 Nm; Stage 1 on this engine typically reaches 390 HP / 820 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Land Rover Range Rover / Sport 2012 - 2018 (L405) 4.4 SDV8 339hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the 4.4 SDV8 339hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.