Land Rover Discovery II (S2) 1998-2001 2.5 Td5 135bhp remap figures
Thinking of remapping a Land Rover Discovery II 2.5 Td5 135bhp? The standard car makes 135bhp and 298Nm; with a Stage 1 remap from our Leicester workshop we expect around 183bhp and 410Nm, up to +48bhp and +112Nm.
Choose your map
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.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 135 bhp | 183 bhp | +48 bhp |
| Torque | 298 Nm | 410 Nm | +112 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 135 bhp | 298 Nm | |
| Stage 1Maximum software-only performance | 183 bhp | 410 Nm | +48 bhp +112 Nm |
| Stage 1 EcoPerformance with economy in mind | 171 bhp | 401 Nm | +36 bhp +103 Nm |
| Eco mapEconomy first | 167 bhp | 395 Nm | +32 bhp +97 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 Discovery II
On a diesel the biggest change is normally torque: the remap changes how much fuel and boost the ECU allows across the rev range, so pulling power arrives earlier and holds on longer.
The ECU recorded for this variant is a MEMS (27C1024). Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
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 Discovery II 2.5 Td5 135bhp?
We expect 183bhp and 410Nm against 135bhp and 298Nm as standard: up to +48bhp and +112Nm. 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 Discovery II 2.5 Td5 135bhp?
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: 171bhp and 401Nm expected. The Eco map is economy first: 167bhp and 395Nm. Both still sit above the standard 135bhp and 298Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Land Rover Discovery II figures
Other diesel variants
All diesel Discovery II (S2) variants · Discovery II (S2) 1998-2004 overview · All Land Rover figures