Remapping Data - Engine Remap Performance and Torque Gains

Remapping the GWM H5 (2010), 2.0 VGT diesel 150HP.

A Stage 1 remap on the 2.0 VGT diesel 150HP in the GWM H5 (2010) lifts power and pulling power in equal measure, taking BHP from 150 to 180bhp (+20%) and torque from 310 to 380Nm (+22.6%).

As a naturally aspirated diesel, the headroom here is more limited than a turbocharged equivalent, but this impressive gain is still a genuine, usable improvement in everyday pulling power. These figures apply to 2010 models.

Typical remap gains for the H5 2.0 VGT diesel 150HP

Power (Horsepower)
Standard vs Remapped
STANDARD 150 BHP

TUNED → 180 BHP

Torque
Standard vs Remapped
STANDARD 310 NM

TUNED → 380 NM

+30 BHPPower gained
+20.0%BHP increase
+70 NmTorque gained
+22.6%Torque increase

  • Power: 150bhp standard, 180bhp after a Stage 1 remap.
  • Torque: 310Nm standard, 380Nm after a Stage 1 remap.
  • This is a balanced gain: power and torque increase by a similar margin, rather than one outpacing the other.
  • This is a naturally aspirated engine, so headroom beyond Stage 1 is limited compared with a turbocharged equivalent.
  • As a diesel, the practical benefit is mainly felt as stronger pulling power for towing and motorway overtaking.
  • These figures apply specifically to 2010 models.
  • These are Stage 1 figures only, achieved without any hardware changes.

Questions about remapping your H5 2.0 VGT diesel 150HP

How much power and torque does a Stage 1 remap add to the GWM H5 (2010) 2.0 VGT diesel 150HP?

A Stage 1 remap typically takes the GWM H5 (2010) 2.0 VGT diesel 150HP from 150bhp to around 180bhp, and torque from 310Nm to around 380Nm. This is a impressive gain achieved entirely through software, with no hardware changes required.

Is the GWM H5 (2010) 2.0 VGT diesel 150HP a good candidate for remapping?

Generally, yes: as a naturally aspirated engine its headroom is more limited, though a well-executed remap can still sharpen throttle response, and the impressive gain shown here reflects that. The main caveats are condition, not the engine itself, a healthy service history, no outstanding fault codes, and (for diesels) a clear DPF and EGR are what actually determine whether this particular car is ready for a remap.

Will remapping affect the warranty on my GWM H5 (2010)?

A manufacturer can only void the parts of a warranty that the remap directly affects, not the entire vehicle, under the Consumer Rights Act and EU Block Exemption principles. In practice, on a GWM H5 (2010) 2.0 VGT diesel 150HP this usually means engine and transmission-related claims are the ones worth discussing with a reputable tuner before booking.

What should I check before booking a remap for my GWM H5 (2010) 2.0 VGT diesel 150HP?

Before booking, confirm the tuner uses a custom or bespoke file rather than a generic off-the-shelf map, ask whether they do a pre-remap health check, and check service history and mileage on your specific GWM H5 (2010). For a diesel like this one, also check the DPF and EGR are in good working order, since a generic remap on a struggling emissions system is where problems tend to start.

What's the difference between a Stage 1 and Stage 2 remap for the 2.0 VGT diesel 150HP?

Stage 1 is software-only and is what the figures on this page reflect. Stage 2 builds on that, but on a naturally aspirated engine like this, the scope for a Stage 2 remap is limited, since there is little forced induction to work with, so it is a separate conversation with a tuner rather than an automatic next step.

Will remapping my GWM H5 (2010) affect my insurance?

Yes, always, a remap is a modification and must be declared to your insurer regardless of size. Given this impressive gain on the 2.0 VGT diesel 150HP, expect a likely premium increase, and it is worth getting a quote from a specialist modified-vehicle insurer before booking the remap itself.